{"id":4948,"date":"2026-10-27T23:00:00","date_gmt":"2026-10-27T23:00:00","guid":{"rendered":"https:\/\/skilllog.jp\/blog\/?p=4948"},"modified":"2026-10-27T07:53:58","modified_gmt":"2026-10-27T07:53:58","slug":"oracle-java-vulnerability-2026-10","status":"publish","type":"post","link":"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/","title":{"rendered":"Java\u306e\u8106\u5f31\u602755\u4ef6\uff082026\u5e7410\u6708\uff09\uff5c\u78ba\u8a8d\u65b9\u6cd5\u3068\u66f4\u65b0\u624b\u9806\u3001\u7dca\u6025\u306e\u8a3c\u660e\u66f8\u554f\u984c\u3068\u30e9\u30a4\u30bb\u30f3\u30b9\u5909\u66f4"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"769\" src=\"https:\/\/skilllog.jp\/blog\/wp-content\/uploads\/2026\/10\/2026\u5e7410\u6708-Java\u66f4\u65b0\u30ac\u30a4\u30c9-1024x769.webp\" alt=\"2026\u5e7410\u6708\u306eJava\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u3092\u6bd4\u8f03\u3057\u305f\u56f3\u89e3\u300210\u670820\u65e5\u306b\u4fee\u6b63\u3055\u308c\u305f55\u4ef6\u306e\u8106\u5f31\u6027\u3068\u300121\u65e5\u306b\u516c\u8868\u3055\u308c\u305f\u8a3c\u660e\u66f8\u306b\u95a2\u3059\u308b\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\uff08CVSS 9.1\uff09\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u78ba\u8a8d\u30fb\u66f4\u65b0\u624b\u9806\u3001JDK 21\u306e\u30e9\u30a4\u30bb\u30f3\u30b9\u5909\u66f4\u3092\u7d39\u4ecb\u3002\" class=\"wp-image-4954\" srcset=\"https:\/\/skilllog.jp\/blog\/wp-content\/uploads\/2026\/10\/2026\u5e7410\u6708-Java\u66f4\u65b0\u30ac\u30a4\u30c9-1024x769.webp 1024w, https:\/\/skilllog.jp\/blog\/wp-content\/uploads\/2026\/10\/2026\u5e7410\u6708-Java\u66f4\u65b0\u30ac\u30a4\u30c9-300x225.webp 300w, https:\/\/skilllog.jp\/blog\/wp-content\/uploads\/2026\/10\/2026\u5e7410\u6708-Java\u66f4\u65b0\u30ac\u30a4\u30c9-767x576.webp 767w, https:\/\/skilllog.jp\/blog\/wp-content\/uploads\/2026\/10\/2026\u5e7410\u6708-Java\u66f4\u65b0\u30ac\u30a4\u30c9.webp 1447w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n<div class=\"article-fv-summary\" style=\"margin:20px 0 24px;padding:22px 24px;background:#eff6ff;border:1px solid #bfdbfe;border-left:5px solid #2563eb;border-radius:12px;\">\n<p style=\"margin:0 0 10px;font-size:13px;font-weight:700;letter-spacing:.08em;color:#2563eb;\">\u3053\u306e\u8a18\u4e8b\u306e\u7d50\u8ad6<\/p>\n<p style=\"margin:0;font-size:17px;line-height:1.8;color:#1e3a5f;font-weight:700;\">Java\u306e\u8106\u5f31\u602755\u4ef6\u304c2026\u5e7410\u670820\u65e5\u306e\u5b9a\u4f8b\u66f4\u65b0\u3067\u4fee\u6b63\u3055\u308c\u307e\u3057\u305f\u3002\u7fcc21\u65e5\u306b\u306f\u8a3c\u660e\u66f8\u306b\u95a2\u3059\u308b\u7dca\u6025\u306e\u66f4\u65b0\u3082\u51fa\u3066\u304a\u308a\u3001\u4e21\u65b9\u306e\u9069\u7528\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ul style=\"margin:16px 0 0;padding-left:22px;font-size:15px;line-height:1.9;color:#334155;\">\n<li>\u5b9a\u4f8b\u66f4\u65b0\u306755\u4ef6\u3092\u4fee\u6b63\u3057\u3001\u3046\u306149\u4ef6\u306f\u8a8d\u8a3c\u306a\u3057\u3067\u9060\u9694\u304b\u3089\u60aa\u7528\u3055\u308c\u3046\u308b<\/li>\n<li>10\u670821\u65e5\u306e\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306f\u3001\u5b9a\u4f8b\u306e\u66f4\u65b0\u7248\u3082\u5f71\u97ff\u3092\u53d7\u3051\u308b\u5bfe\u8c61<\/li>\n<li>JDK 21\u306f21.0.13\u304b\u3089\u3001\u7121\u511f\u3067\u4f7f\u3048\u308b\u6761\u4ef6\u304c\u5909\u308f\u3063\u305f<\/li>\n<\/ul>\n<\/div>\n<p style=\"font-size:13px;color:#6b7280;margin-bottom:8px;\">\ud83d\udcd6 \u8aad\u4e86\u6642\u9593\uff1a\u7d0412\u5206<\/p>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">Java\u306e\u8106\u5f31\u602755\u4ef6\u304c\u30012026\u5e7410\u670820\u65e5\uff08\u7c73\u56fd\u6642\u9593\uff09\u306b\u516c\u958b\u3055\u308c\u305fOracle\u306e\u5b9a\u4f8b\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u3067\u4fee\u6b63\u3055\u308c\u307e\u3057\u305f\u300255\u4ef6\u306e\u3046\u306149\u4ef6\u306f\u3001\u8a8d\u8a3c\u306a\u3057\u3067\u9060\u9694\u304b\u3089\u60aa\u7528\u3055\u308c\u3046\u308b\u3082\u306e\u3067\u3001IPA\u308210\u670821\u65e5\u306b\u300c\u65e9\u6025\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u547c\u3073\u304b\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u3055\u3089\u306bOracle\u306f\u7fcc21\u65e5\u306b\u3001\u8a3c\u660e\u66f8\u306b\u95a2\u3059\u308b\u7dca\u6025\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30e9\u30fc\u30c8\uff08CVE-2026-91403\u3001CVSS 9.1\uff09\u3092\u51fa\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30a2\u30e9\u30fc\u30c8\u3067\u306f\u300120\u65e5\u306e\u5b9a\u4f8b\u66f4\u65b0\u3067\u51fa\u305f\u7248\u3082\u5f71\u97ff\u3092\u53d7\u3051\u308b\u5bfe\u8c61\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u5b9a\u4f8b\u306e\u66f4\u65b0\u3060\u3051\u3067\u306f\u8db3\u308a\u307e\u305b\u3093\u3002<\/p>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u307e\u305f\u3001JDK 21\u306f\u4eca\u56de\u306e21.0.13\u304b\u3089\u3001\u7121\u511f\u3067\u4f7f\u3048\u308b\u6761\u4ef6\u304c\u5909\u308f\u308a\u307e\u3057\u305f\u3002\u4ee5\u4e0b\u3067\u306f\u30012\u3064\u306e\u66f4\u65b0\u306e\u4e2d\u8eab\u3001\u5bfe\u8c61\u304b\u78ba\u304b\u3081\u308b\u65b9\u6cd5\u3001\u66f4\u65b0\u306e\u624b\u9806\u3001\u30e9\u30a4\u30bb\u30f3\u30b9\u306e\u6ce8\u610f\u70b9\u306e\u9806\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u5185\u5bb9\u306f2026\u5e7410\u670827\u65e5\u6642\u70b9\u306e\u516c\u958b\u60c5\u5831\u306b\u3082\u3068\u3065\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<div style=\"margin-top:32px;margin-bottom:24px;padding:24px;background-color:#fef3f2;border-left:4px solid #ef4444;border-radius:8px;\">\n<p style=\"font-size:16px;line-height:1.6;color:#333;\"><strong>\u3053\u3093\u306a\u60a9\u307f\u306f\u3042\u308a\u307e\u305b\u3093\u304b<\/strong><\/p>\n<ul style=\"font-size:16px;line-height:1.6;color:#333;margin-top:12px;padding-left:24px;\">\n<li>Java\u306e\u8106\u5f31\u6027\u304c\u3069\u308c\u304f\u3089\u3044\u5371\u967a\u306a\u306e\u304b\u77e5\u308a\u305f\u3044<\/li>\n<li>\u62c5\u5f53\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u3084\u30a2\u30d7\u30ea\u304c\u5bfe\u8c61\u304b\u78ba\u304b\u3081\u305f\u3044<\/li>\n<li>\u5b9a\u4f8b\u306e\u66f4\u65b0\u3068\u7dca\u6025\u306e\u66f4\u65b0\u306e\u9055\u3044\u304c\u5206\u304b\u3089\u306a\u3044<\/li>\n<li>Oracle JDK\u306e\u30e9\u30a4\u30bb\u30f3\u30b9\u304c\u5909\u308f\u3063\u305f\u3068\u805e\u3044\u3066\u4e0d\u5b89<\/li>\n<\/ul>\n<\/div>\n<div style=\"margin-top:32px;margin-bottom:24px;padding:24px;background-color:#f9fafb;border-left:4px solid #06c755;border-radius:8px;\">\n<p style=\"font-size:16px;line-height:1.6;color:#333;\"><strong>\u3053\u306e\u8a18\u4e8b\u3067\u5206\u304b\u308b\u3053\u3068<\/strong><\/p>\n<ul style=\"font-size:16px;line-height:1.6;color:#333;margin-top:12px;padding-left:24px;\">\n<li>10\u6708\u306e\u5b9a\u4f8b\u66f4\u65b0\u3068\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306e\u4e2d\u8eab<\/li>\n<li>Java\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u304b\u3081\u308b\u30b3\u30de\u30f3\u30c9<\/li>\n<li>\u30a2\u30d7\u30ea\u306b\u540c\u68b1\u3055\u308c\u305fJava\u3084\u30b3\u30f3\u30c6\u30ca\u306e\u6ce8\u610f\u70b9<\/li>\n<li>\u66f4\u65b0\u306e\u624b\u9806\u3068\u3001\u3059\u3050\u66f4\u65b0\u3067\u304d\u306a\u3044\u3068\u304d\u306e\u8003\u3048\u65b9<\/li>\n<li>JDK 21.0.13\u304b\u3089\u306e\u30e9\u30a4\u30bb\u30f3\u30b9\u306e\u5909\u66f4<\/li>\n<\/ul>\n<\/div>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u62c5\u5f53\u3057\u3066\u3044\u308bJava\u306e\u74b0\u5883\u304c\u5bfe\u8c61\u304b\u3092\u5224\u65ad\u3057\u3001\u66f4\u65b0\u3092\u9032\u3081\u3089\u308c\u307e\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u3067\u30b9\u30ad\u30eb\u30ed\u30b0\u306b\u767b\u9332\u3057\u3001\u6271\u3063\u3066\u3044\u308bJava\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u6574\u7406\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<div style=\"clear:both;display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap;margin:32px 0;padding:8px 0;line-height:1.6;\"><a href=\"https:\/\/skilllog.jp\/users\/sign_up?utm_source=blog&utm_medium=article&utm_campaign=oracle-java-vulnerability-2026-10\" style=\"background:#2563eb;color:#ffffff;padding:14px 28px;border-radius:8px;text-decoration:none;font-weight:700;text-align:center;white-space:nowrap;display:inline-block;line-height:1.4;\">\u6271\u3046\u6280\u8853\u3092\u6574\u7406\u3059\u308b<\/a><a href=\"#skilllog-consultation\" style=\"background:#06c755;color:#ffffff;padding:14px 28px;border-radius:8px;text-decoration:none;font-weight:700;text-align:center;white-space:nowrap;display:inline-block;line-height:1.4;\">\u8ee2\u8077\u30fb\u6848\u4ef6\u76f8\u8ac7\u3092\u3059\u308b<\/a><\/div>\n<div style=\"margin-top:48px;margin-bottom:24px;\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%AE%E6%A6%82%E8%A6%81%EF%BC%882026%E5%B9%B410%E6%9C%88%EF%BC%89\" >Java\u306e\u8106\u5f31\u6027\u306e\u6982\u8981\uff082026\u5e7410\u6708\uff09<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E7%B7%8A%E6%80%A5%E3%82%A2%E3%83%A9%E3%83%BC%E3%83%88%E3%81%AF%E3%80%8C%E8%A8%BC%E6%98%8E%E6%9B%B8%E3%82%92%E4%BF%A1%E9%A0%BC%E3%81%97%E3%81%AA%E3%81%84%E3%80%8D%E3%81%9F%E3%82%81%E3%81%AE%E6%9B%B4%E6%96%B0\" >\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306f\u300c\u8a3c\u660e\u66f8\u3092\u4fe1\u983c\u3057\u306a\u3044\u300d\u305f\u3081\u306e\u66f4\u65b0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#IPA%E3%81%8C%E7%A4%BA%E3%81%97%E3%81%9F%E5%AF%BE%E8%B1%A1%E3%81%AE%E7%89%88\" >IPA\u304c\u793a\u3057\u305f\u5bfe\u8c61\u306e\u7248<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%AE%E5%AF%BE%E8%B1%A1%E3%81%8B%E7%A2%BA%E3%81%8B%E3%82%81%E3%82%8B%E6%96%B9%E6%B3%95\" >Java\u306e\u8106\u5f31\u6027\u306e\u5bfe\u8c61\u304b\u78ba\u304b\u3081\u308b\u65b9\u6cd5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E3%82%A2%E3%83%97%E3%83%AA%E3%81%AB%E5%90%8C%E6%A2%B1%E3%81%95%E3%82%8C%E3%81%9FJava%E3%81%AB%E6%B3%A8%E6%84%8F\" >\u30a2\u30d7\u30ea\u306b\u540c\u68b1\u3055\u308c\u305fJava\u306b\u6ce8\u610f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#OpenJDK%E3%81%AE%E3%83%87%E3%82%A3%E3%82%B9%E3%83%88%E3%83%AA%E3%83%93%E3%83%A5%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3%E3%81%AE%E5%A0%B4%E5%90%88\" >OpenJDK\u306e\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u5834\u5408<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%B8%E3%81%AE%E5%AF%BE%E5%BF%9C%E6%89%8B%E9%A0%86\" >Java\u306e\u8106\u5f31\u6027\u3078\u306e\u5bfe\u5fdc\u624b\u9806<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E3%81%99%E3%81%90%E3%81%AB%E6%9B%B4%E6%96%B0%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%81%A8%E3%81%8D\" >\u3059\u3050\u306b\u66f4\u65b0\u3067\u304d\u306a\u3044\u3068\u304d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E6%AC%A1%E3%81%AE%E5%AE%9A%E4%BE%8B%E6%9B%B4%E6%96%B0%E3%81%AE%E4%BA%88%E5%AE%9A\" >\u6b21\u306e\u5b9a\u4f8b\u66f4\u65b0\u306e\u4e88\u5b9a<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%A8%E5%90%8C%E6%99%82%E3%81%AB%E7%A2%BA%E3%81%8B%E3%82%81%E3%81%9F%E3%81%84%E3%83%A9%E3%82%A4%E3%82%BB%E3%83%B3%E3%82%B9%E3%81%AE%E5%A4%89%E6%9B%B4\" >Java\u306e\u8106\u5f31\u6027\u3068\u540c\u6642\u306b\u78ba\u304b\u3081\u305f\u3044\u30e9\u30a4\u30bb\u30f3\u30b9\u306e\u5909\u66f4<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E4%BC%9A%E7%A4%BE%E3%81%AE%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0%E3%81%A7%E4%BD%BF%E3%81%A3%E3%81%A6%E3%81%84%E3%82%8B%E5%A0%B4%E5%90%88\" >\u4f1a\u793e\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%B8%E3%81%AE%E5%AF%BE%E5%BF%9C%E3%82%92%E7%B5%8C%E6%AD%B4%E3%81%A8%E3%81%97%E3%81%A6%E4%BC%9D%E3%81%88%E3%82%8B\" >Java\u306e\u8106\u5f31\u6027\u3078\u306e\u5bfe\u5fdc\u3092\u7d4c\u6b74\u3068\u3057\u3066\u4f1d\u3048\u308b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E5%AF%BE%E5%BF%9C%E3%81%AE%E7%B5%8C%E9%A8%93%E3%82%92%E3%82%B9%E3%82%AD%E3%83%AB%E3%83%AD%E3%82%B0%E3%81%A7%E6%AE%8B%E3%81%99%E7%90%86%E7%94%B1\" >\u5bfe\u5fdc\u306e\u7d4c\u9a13\u3092\u30b9\u30ad\u30eb\u30ed\u30b0\u3067\u6b8b\u3059\u7406\u7531<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E3%81%BE%E3%81%A8%E3%82%81\" >\u307e\u3068\u3081<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E3%82%88%E3%81%8F%E3%81%82%E3%82%8B%E8%B3%AA%E5%95%8F\" >\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%AF%E4%BD%95%E4%BB%B6%E4%BF%AE%E6%AD%A3%E3%81%95%E3%82%8C%E3%81%BE%E3%81%97%E3%81%9F%E3%81%8B%EF%BC%9F\" >Java\u306e\u8106\u5f31\u6027\u306f\u4f55\u4ef6\u4fee\u6b63\u3055\u308c\u307e\u3057\u305f\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#%E5%AE%9A%E4%BE%8B%E3%81%AE%E6%9B%B4%E6%96%B0%E7%89%88%EF%BC%8821013%E3%81%AA%E3%81%A9%EF%BC%89%E3%82%92%E5%85%A5%E3%82%8C%E3%82%8C%E3%81%B0%E5%8D%81%E5%88%86%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\" >\u5b9a\u4f8b\u306e\u66f4\u65b0\u7248\uff0821.0.13\u306a\u3069\uff09\u3092\u5165\u308c\u308c\u3070\u5341\u5206\u3067\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#OpenJDK%E3%82%92%E4%BD%BF%E3%81%A3%E3%81%A6%E3%81%84%E3%82%8B%E5%A0%B4%E5%90%88%E3%82%82%E5%AF%BE%E8%B1%A1%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\" >OpenJDK\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u5bfe\u8c61\u3067\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#Java%E3%82%92%E6%9B%B4%E6%96%B0%E3%81%97%E3%81%9F%E3%82%89%E3%82%A2%E3%83%97%E3%83%AA%E3%81%AE%E5%86%8D%E8%B5%B7%E5%8B%95%E3%81%AF%E5%BF%85%E8%A6%81%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\" >Java\u3092\u66f4\u65b0\u3057\u305f\u3089\u30a2\u30d7\u30ea\u306e\u518d\u8d77\u52d5\u306f\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/oracle-java-vulnerability-2026-10\/#Oracle_JDK_21%E3%81%AF%E7%84%A1%E5%84%9F%E3%81%A7%E4%BD%BF%E3%81%88%E3%81%AA%E3%81%8F%E3%81%AA%E3%81%A3%E3%81%9F%E3%81%AE%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\" >Oracle JDK 21\u306f\u7121\u511f\u3067\u4f7f\u3048\u306a\u304f\u306a\u3063\u305f\u306e\u3067\u3059\u304b\uff1f<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 style=\"font-size:32px;font-weight:700;border-left:6px solid #2563eb;padding-left:16px;line-height:1.5;\"><span class=\"ez-toc-section\" id=\"Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%AE%E6%A6%82%E8%A6%81%EF%BC%882026%E5%B9%B410%E6%9C%88%EF%BC%89\"><\/span>Java\u306e\u8106\u5f31\u6027\u306e\u6982\u8981\uff082026\u5e7410\u6708\uff09<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div style=\"background:#eff6ff;border-left:4px solid #2563eb;padding:16px 20px;border-radius:6px;margin-bottom:24px;\">\n<p style=\"margin:0;font-size:15px;line-height:1.7;color:#1e3a5f;\">10\u670820\u65e5\u306e\u5b9a\u4f8b\u66f4\u65b0\u3068\u300110\u670821\u65e5\u306e\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306e2\u3064\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n<table style=\"width:100%;border-collapse:collapse;margin:24px 0;\">\n<tr>\n<th style=\"border:1px solid #ddd;padding:12px;background:#1e40af;color:#ffffff;font-weight:700;text-align:left;\">\u66f4\u65b0<\/th>\n<th style=\"border:1px solid #ddd;padding:12px;background:#1e40af;color:#ffffff;font-weight:700;text-align:left;\">\u5185\u5bb9<\/th>\n<th style=\"border:1px solid #ddd;padding:12px;background:#1e40af;color:#ffffff;font-weight:700;text-align:left;\">\u6df1\u523b\u5ea6<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">\u5b9a\u4f8b\u66f4\u65b0\uff0810\u670820\u65e5\uff09<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">Java SE\u306e\u8106\u5f31\u602755\u4ef6\u3092\u4fee\u6b63\u300249\u4ef6\u306f\u8a8d\u8a3c\u306a\u3057\u3067\u9060\u9694\u304b\u3089\u60aa\u7528\u3055\u308c\u3046\u308b<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">\u6700\u3082\u9ad8\u3044\u3082\u306e\u3067 CVSS 7.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\">\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\uff0810\u670821\u65e5\uff09<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\">\u30a4\u30f3\u30c9\u306e\u8a8d\u8a3c\u5c40eMudhra\u306b\u95a2\u4fc2\u3059\u308b\u4e2d\u9593\u8a3c\u660e\u66f8\u3092\u3001Java\u304c\u4fe1\u983c\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\">CVSS 9.1<\/td>\n<\/tr>\n<\/table>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">CVSS\u3068\u306f\u3001\u8106\u5f31\u6027\u306e\u6df1\u523b\u3055\u30920\u301c10\u306e\u6570\u5024\u3067\u8868\u3059\u5171\u901a\u306e\u57fa\u6e96\u306e\u3053\u3068\u3067\u3059\u3002\u5b9a\u4f8b\u66f4\u65b0\u306e55\u4ef6\u306b\u306f\u3001JavaFX\u3084Java\u30d7\u30e9\u30b0\u30a4\u30f3\u306a\u3069\u3001\u4f7f\u3063\u3066\u3044\u308b\u6a5f\u80fd\u306b\u3088\u3063\u3066\u5f71\u97ff\u304c\u5909\u308f\u308b\u3082\u306e\u3082\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E7%B7%8A%E6%80%A5%E3%82%A2%E3%83%A9%E3%83%BC%E3%83%88%E3%81%AF%E3%80%8C%E8%A8%BC%E6%98%8E%E6%9B%B8%E3%82%92%E4%BF%A1%E9%A0%BC%E3%81%97%E3%81%AA%E3%81%84%E3%80%8D%E3%81%9F%E3%82%81%E3%81%AE%E6%9B%B4%E6%96%B0\"><\/span>\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306f\u300c\u8a3c\u660e\u66f8\u3092\u4fe1\u983c\u3057\u306a\u3044\u300d\u305f\u3081\u306e\u66f4\u65b0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306f\u3001eMudhra\u306b\u95a2\u4fc2\u3059\u308b\u4e2d\u9593\u8a3c\u660e\u66f8\u304c\u4e0d\u6b63\u306b\u4f7f\u308f\u308c\u308b\u304a\u305d\u308c\u304c\u3042\u308b\u305f\u3081\u3001Java\u304c\u305d\u308c\u3089\u3092\u4fe1\u983c\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u66f4\u65b0\u3067\u3059\u3002\u5bfe\u8c61\u306f\u3001Oracle Java SE\u306e8u511\u300111.0.33\u300117.0.21\u300121.0.13\u300125.0.5\u300127.0.1\u306a\u3069\u3067\u3001\u3053\u308c\u3089\u306f20\u65e5\u306e\u5b9a\u4f8b\u66f4\u65b0\u3067\u51fa\u305f\u7248\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u5b9a\u4f8b\u306e\u7248\u306b\u4e0a\u3052\u305f\u3060\u3051\u3067\u306f\u3001\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306e\u5bfe\u7b56\u306f\u3067\u304d\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"IPA%E3%81%8C%E7%A4%BA%E3%81%97%E3%81%9F%E5%AF%BE%E8%B1%A1%E3%81%AE%E7%89%88\"><\/span>IPA\u304c\u793a\u3057\u305f\u5bfe\u8c61\u306e\u7248<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">IPA\u306e\u6ce8\u610f\u559a\u8d77\u3067\u306f\u3001Oracle Java SE 27\u300126.0.2\u300125.0.4.1\u300121.0.12.1\u300117.0.20.1\u300111.0.32.1\u30018 Update 503\u306a\u3069\u304c\u5bfe\u8c61\u3068\u3057\u3066\u6319\u3052\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u3088\u308a\u53e4\u3044\u7248\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u3001\u66f4\u65b0\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<div style=\"margin-top:48px;margin-bottom:24px;\">\n<h2 style=\"font-size:32px;font-weight:700;border-left:6px solid #2563eb;padding-left:16px;line-height:1.5;\"><span class=\"ez-toc-section\" id=\"Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%AE%E5%AF%BE%E8%B1%A1%E3%81%8B%E7%A2%BA%E3%81%8B%E3%82%81%E3%82%8B%E6%96%B9%E6%B3%95\"><\/span>Java\u306e\u8106\u5f31\u6027\u306e\u5bfe\u8c61\u304b\u78ba\u304b\u3081\u308b\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div style=\"background:#eff6ff;border-left:4px solid #2563eb;padding:16px 20px;border-radius:6px;margin-bottom:24px;\">\n<p style=\"margin:0;font-size:15px;line-height:1.7;color:#1e3a5f;\">\u5165\u3063\u3066\u3044\u308bJava\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u3001\u30b5\u30fc\u30d0\u30fc\u3084\u30a2\u30d7\u30ea\u3054\u3068\u306b\u78ba\u304b\u3081\u307e\u3059\u3002<\/p>\n<\/div>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u30b3\u30de\u30f3\u30c9\u304c\u4f7f\u3048\u308b\u74b0\u5883\u3067\u306f\u3001<code>java -version<\/code> \u3067\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u8868\u793a\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u30011\u53f0\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u8907\u6570\u306eJava\u304c\u5165\u3063\u3066\u3044\u308b\u3053\u3068\u3082\u591a\u304f\u3001\u30b3\u30de\u30f3\u30c9\u3067\u52d5\u304fJava\u3068\u30a2\u30d7\u30ea\u304c\u4f7f\u3046Java\u304c\u9055\u3046\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:24px 0;\">\n<tr>\n<th style=\"border:1px solid #ddd;padding:12px;background:#1e40af;color:#ffffff;font-weight:700;text-align:left;\">\u78ba\u304b\u3081\u308b\u5834\u6240<\/th>\n<th style=\"border:1px solid #ddd;padding:12px;background:#1e40af;color:#ffffff;font-weight:700;text-align:left;\">\u65b9\u6cd5<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">\u30b3\u30de\u30f3\u30c9\u3067\u52d5\u304fJava<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\"><code>java -version<\/code><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\">Windows\u3067\u5165\u3063\u3066\u3044\u308b\u5834\u6240<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\"><code>where java<\/code><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">Linux\u3067\u5165\u3063\u3066\u3044\u308b\u5834\u6240<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\"><code>which -a java<\/code> \u3084 <code>update-alternatives --list java<\/code><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\">\u30a2\u30d7\u30ea\u304c\u4f7f\u3046Java<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\">\u8d77\u52d5\u306e\u8a2d\u5b9a\u3084\u74b0\u5883\u5909\u6570 <code>JAVA_HOME<\/code><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">\u30b3\u30f3\u30c6\u30ca<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">\u30d9\u30fc\u30b9\u30a4\u30e1\u30fc\u30b8\u306e\u540d\u524d\u3068\u30bf\u30b0<\/td>\n<\/tr>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"%E3%82%A2%E3%83%97%E3%83%AA%E3%81%AB%E5%90%8C%E6%A2%B1%E3%81%95%E3%82%8C%E3%81%9FJava%E3%81%AB%E6%B3%A8%E6%84%8F\"><\/span>\u30a2\u30d7\u30ea\u306b\u540c\u68b1\u3055\u308c\u305fJava\u306b\u6ce8\u610f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306e\u88fd\u54c1\u3084\u958b\u767a\u30c4\u30fc\u30eb\u306e\u4e2d\u306b\u306f\u3001Java\u3092\u540c\u68b1\u3057\u3066\u3044\u308b\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30b5\u30fc\u30d0\u30fc\u306eJava\u3092\u66f4\u65b0\u3057\u3066\u3082\u3001\u540c\u68b1\u3055\u308c\u305fJava\u306f\u53e4\u3044\u307e\u307e\u3067\u3059\u3002\u88fd\u54c1\u306e\u63d0\u4f9b\u5143\u304c\u51fa\u3059\u66f4\u65b0\u3092\u78ba\u304b\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"OpenJDK%E3%81%AE%E3%83%87%E3%82%A3%E3%82%B9%E3%83%88%E3%83%AA%E3%83%93%E3%83%A5%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3%E3%81%AE%E5%A0%B4%E5%90%88\"><\/span>OpenJDK\u306e\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u5834\u5408<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">Oracle JDK\u4ee5\u5916\u306e\u3001OpenJDK\u3092\u3082\u3068\u306b\u3057\u305f\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\uff08Eclipse Temurin\u3001Amazon Corretto\u3001Azul Zulu\u306a\u3069\uff09\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u63d0\u4f9b\u5143\u306e\u6848\u5185\u306b\u6cbf\u3063\u3066\u66f4\u65b0\u3057\u307e\u3059\u3002\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306e\u8a3c\u660e\u66f8\u306e\u554f\u984c\u3078\u306e\u5bfe\u5fdc\u306e\u6642\u671f\u306f\u3001\u63d0\u4f9b\u5143\u306b\u3088\u3063\u3066\u9055\u3046\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">Java\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6d17\u3044\u51fa\u3059\u3068\u304d\u306f\u3001\u81ea\u5206\u304c\u3069\u306e\u7248\u306eJava\u3067\u3001\u3069\u3093\u306a\u30b7\u30b9\u30c6\u30e0\u306b\u95a2\u308f\u3063\u3066\u304d\u305f\u304b\u3082\u6574\u7406\u3057\u3066\u304a\u304f\u3068\u3001\u66f4\u65b0\u306e\u62c5\u5f53\u3092\u4efb\u3055\u308c\u305f\u3068\u304d\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u30b9\u30ad\u30eb\u30ed\u30b0\u306a\u3089\u6280\u8853\u3054\u3068\u306b\u81ea\u5df1\u8a55\u4fa1\u3068\u7d4c\u9a13\u5e74\u6570\u3092\u4e00\u89a7\u306b\u3067\u304d\u3001\u6848\u4ef6\u3054\u3068\u306b\u4f7f\u3063\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3082\u8a18\u9332\u3067\u304d\u307e\u3059\u3002<\/p>\n<div style=\"clear:both;display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap;margin:32px 0;padding:8px 0;line-height:1.6;\"><a href=\"https:\/\/skilllog.jp\/users\/sign_up?utm_source=blog&utm_medium=article&utm_campaign=oracle-java-vulnerability-2026-10\" style=\"background:#2563eb;color:#ffffff;padding:14px 28px;border-radius:8px;text-decoration:none;font-weight:700;text-align:center;white-space:nowrap;display:inline-block;line-height:1.4;\">\u4f7f\u3063\u305f\u6280\u8853\u3092\u4e00\u89a7\u306b\u3059\u308b<\/a><a href=\"#skilllog-consultation\" style=\"background:#06c755;color:#ffffff;padding:14px 28px;border-radius:8px;text-decoration:none;font-weight:700;text-align:center;white-space:nowrap;display:inline-block;line-height:1.4;\">\u8ee2\u8077\u30fb\u6848\u4ef6\u76f8\u8ac7\u3092\u3059\u308b<\/a><\/div>\n<div style=\"margin-top:48px;margin-bottom:24px;\">\n<h2 style=\"font-size:32px;font-weight:700;border-left:6px solid #2563eb;padding-left:16px;line-height:1.5;\"><span class=\"ez-toc-section\" id=\"Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%B8%E3%81%AE%E5%AF%BE%E5%BF%9C%E6%89%8B%E9%A0%86\"><\/span>Java\u306e\u8106\u5f31\u6027\u3078\u306e\u5bfe\u5fdc\u624b\u9806<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div style=\"background:#eff6ff;border-left:4px solid #2563eb;padding:16px 20px;border-radius:6px;margin-bottom:24px;\">\n<p style=\"margin:0;font-size:15px;line-height:1.7;color:#1e3a5f;\">\u5b9a\u4f8b\u306e\u66f4\u65b0\u3068\u7dca\u6025\u306e\u66f4\u65b0\u306e\u4e21\u65b9\u3092\u5165\u308c\u3001\u30a2\u30d7\u30ea\u3092\u518d\u8d77\u52d5\u3057\u3066\u78ba\u304b\u3081\u307e\u3059\u3002<\/p>\n<\/div>\n<ul style=\"margin:0 0 20px 0;padding-left:24px;line-height:1.9;\">\n<li>\u5bfe\u8c61\u3092\u6d17\u3044\u51fa\u3059\uff1a\u30b5\u30fc\u30d0\u30fc\u3001\u958b\u767a\u7aef\u672b\u3001\u30b3\u30f3\u30c6\u30ca\u3001Java\u3092\u540c\u68b1\u3057\u305f\u88fd\u54c1\u3092\u4e00\u89a7\u306b\u3059\u308b<\/li>\n<li>\u66f4\u65b0\u7248\u3092\u5165\u308c\u308b\uff1a10\u670821\u65e5\u4ee5\u964d\u306b\u51fa\u305f\u3001\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306e\u5bfe\u7b56\u3092\u542b\u3080\u66f4\u65b0\u7248\u3092\u9069\u7528\u3059\u308b<\/li>\n<li>\u30a2\u30d7\u30ea\u3092\u518d\u8d77\u52d5\u3059\u308b\uff1aJava\u3092\u66f4\u65b0\u3057\u3066\u3082\u3001\u52d5\u3044\u3066\u3044\u308b\u30a2\u30d7\u30ea\u306f\u518d\u8d77\u52d5\u3059\u308b\u307e\u3067\u53e4\u3044\u307e\u307e\u306b\u306a\u308b<\/li>\n<li>\u52d5\u4f5c\u3092\u78ba\u304b\u3081\u308b\uff1a\u8a3c\u660e\u66f8\u3092\u4f7f\u3046\u901a\u4fe1\u3084\u30d0\u30c3\u30c1\u51e6\u7406\u304c\u3001\u66f4\u65b0\u5f8c\u3082\u6b63\u5e38\u306b\u52d5\u304f\u304b\u3092\u78ba\u304b\u3081\u308b<\/li>\n<li>\u8a18\u9332\u3092\u6b8b\u3059\uff1a\u66f4\u65b0\u3057\u305f\u65e5\u3001\u5bfe\u8c61\u3001\u7248\u3092\u8a18\u9332\u3057\u3066\u304a\u304f<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E3%81%99%E3%81%90%E3%81%AB%E6%9B%B4%E6%96%B0%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%81%A8%E3%81%8D\"><\/span>\u3059\u3050\u306b\u66f4\u65b0\u3067\u304d\u306a\u3044\u3068\u304d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u3059\u3050\u306b\u66f4\u65b0\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u516c\u958b\u3057\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u512a\u5148\u3057\u3066\u8a08\u753b\u3092\u7acb\u3066\u307e\u3059\u3002\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306e\u8a3c\u660e\u66f8\u306e\u554f\u984c\u306b\u3064\u3044\u3066\u306f\u3001OpenJDK\u306e\u95a2\u4fc2\u8005\u3084\u63d0\u4f9b\u5143\u304c\u3001\u4fe1\u983c\u3057\u306a\u3044\u8a3c\u660e\u66f8\u306e\u4e00\u89a7\u30d5\u30a1\u30a4\u30eb\u3092\u5dee\u3057\u66ff\u3048\u308b\u66ab\u5b9a\u306e\u65b9\u6cd5\u3092\u6848\u5185\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u66ab\u5b9a\u306e\u5bfe\u7b56\u306f\u66f4\u65b0\u306e\u4ee3\u308f\u308a\u306b\u306f\u306a\u3089\u306a\u3044\u306e\u3067\u3001\u65e9\u3081\u306b\u66f4\u65b0\u7248\u3092\u5165\u308c\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E6%AC%A1%E3%81%AE%E5%AE%9A%E4%BE%8B%E6%9B%B4%E6%96%B0%E3%81%AE%E4%BA%88%E5%AE%9A\"><\/span>\u6b21\u306e\u5b9a\u4f8b\u66f4\u65b0\u306e\u4e88\u5b9a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">Oracle\u306e\u30ea\u30ea\u30fc\u30b9\u30ce\u30fc\u30c8\u306b\u3088\u308b\u3068\u3001\u6b21\u306e\u5b9a\u4f8b\u66f4\u65b0\u306f2026\u5e7411\u670817\u65e5\u306e\u4e88\u5b9a\u3067\u3059\u3002Java\u306f\u5b9a\u671f\u7684\u306b\u66f4\u65b0\u304c\u51fa\u308b\u306e\u3067\u3001\u66f4\u65b0\u306e\u624b\u9806\u3092\u6c7a\u3081\u3066\u304a\u304f\u3068\u3001\u6b21\u304b\u3089\u901f\u304f\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n<div style=\"margin-top:48px;margin-bottom:24px;\">\n<h2 style=\"font-size:32px;font-weight:700;border-left:6px solid #2563eb;padding-left:16px;line-height:1.5;\"><span class=\"ez-toc-section\" id=\"Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%A8%E5%90%8C%E6%99%82%E3%81%AB%E7%A2%BA%E3%81%8B%E3%82%81%E3%81%9F%E3%81%84%E3%83%A9%E3%82%A4%E3%82%BB%E3%83%B3%E3%82%B9%E3%81%AE%E5%A4%89%E6%9B%B4\"><\/span>Java\u306e\u8106\u5f31\u6027\u3068\u540c\u6642\u306b\u78ba\u304b\u3081\u305f\u3044\u30e9\u30a4\u30bb\u30f3\u30b9\u306e\u5909\u66f4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div style=\"background:#eff6ff;border-left:4px solid #2563eb;padding:16px 20px;border-radius:6px;margin-bottom:24px;\">\n<p style=\"margin:0;font-size:15px;line-height:1.7;color:#1e3a5f;\">JDK 21\u306f21.0.13\u304b\u3089\u3001\u7121\u511f\u3067\u4f7f\u3048\u308b\u6761\u4ef6\u304c\u5909\u308f\u308a\u307e\u3057\u305f\u3002<\/p>\n<\/div>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">Oracle\u306e\u30ea\u30ea\u30fc\u30b9\u30ce\u30fc\u30c8\u306b\u3088\u308b\u3068\u3001JDK 21.0.13\u306f\u3001Oracle Technology Network License\uff08OTN\uff09\u306e\u3082\u3068\u3067\u63d0\u4f9b\u3055\u308c\u308b\u6700\u521d\u306eJDK 21\u306e\u66f4\u65b0\u7248\u3067\u3059\u3002\u3053\u308c\u307e\u3067\u306eJDK 21\u306e\u66f4\u65b0\u7248\u306f\u3001\u7121\u511f\u3067\u4f7f\u3048\u308b\u6761\u4ef6\uff08NFTC\uff09\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:24px 0;\">\n<tr>\n<th style=\"border:1px solid #ddd;padding:12px;background:#1e40af;color:#ffffff;font-weight:700;text-align:left;\">\u30e9\u30a4\u30bb\u30f3\u30b9<\/th>\n<th style=\"border:1px solid #ddd;padding:12px;background:#1e40af;color:#ffffff;font-weight:700;text-align:left;\">\u7121\u511f\u3067\u4f7f\u3048\u308b\u7bc4\u56f2<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">NFTC\uff0821.0.12\u307e\u3067\uff09<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#ffffff;\">\u5546\u7528\u3067\u306e\u5229\u7528\u3082\u542b\u3081\u3066\u3001\u6761\u4ef6\u306e\u3082\u3068\u3067\u7121\u511f<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\">OTN\uff0821.0.13\u304b\u3089\uff09<\/td>\n<td style=\"border:1px solid #ddd;padding:12px;background:#f8fafc;\">\u500b\u4eba\u3067\u306e\u5229\u7528\u3084\u958b\u767a\u3067\u306e\u5229\u7528\u306a\u3069\u306f\u7121\u511f\u3002\u305d\u308c\u4ee5\u5916\u306e\u5229\u7528\u306f\u6761\u4ef6\u304c\u5909\u308f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/td>\n<\/tr>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"%E4%BC%9A%E7%A4%BE%E3%81%AE%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0%E3%81%A7%E4%BD%BF%E3%81%A3%E3%81%A6%E3%81%84%E3%82%8B%E5%A0%B4%E5%90%88\"><\/span>\u4f1a\u793e\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u4f1a\u793e\u306e\u672c\u756a\u74b0\u5883\u3067Oracle JDK 21\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u300121.0.13\u4ee5\u964d\u306b\u66f4\u65b0\u3059\u308b\u524d\u306b\u3001\u30e9\u30a4\u30bb\u30f3\u30b9\u306e\u6761\u4ef6\u3092\u78ba\u304b\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002IPA\u3082\u30012019\u5e744\u670816\u65e5\u4ee5\u964d\u306eJava\u306e\u30ea\u30ea\u30fc\u30b9\u306f\u30e9\u30a4\u30bb\u30f3\u30b9\u304c\u5909\u308f\u3063\u3066\u3044\u308b\u3068\u3057\u3066\u3001\u5546\u7528\u3067\u4f7f\u3046\u7d44\u7e54\u306b\u30e9\u30a4\u30bb\u30f3\u30b9\u306e\u78ba\u8a8d\u3092\u6c42\u3081\u3066\u3044\u307e\u3059\u3002Oracle\u306eFAQ\u3092\u78ba\u304b\u3081\u305f\u3046\u3048\u3067\u3001\u6709\u511f\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u4f7f\u3046\u304b\u3001OpenJDK\u306e\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u5207\u308a\u66ff\u3048\u308b\u304b\u3092\u3001\u793e\u5185\u3067\u5224\u65ad\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div style=\"margin-top:48px;margin-bottom:24px;\">\n<h2 style=\"font-size:32px;font-weight:700;border-left:6px solid #2563eb;padding-left:16px;line-height:1.5;\"><span class=\"ez-toc-section\" id=\"Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%B8%E3%81%AE%E5%AF%BE%E5%BF%9C%E3%82%92%E7%B5%8C%E6%AD%B4%E3%81%A8%E3%81%97%E3%81%A6%E4%BC%9D%E3%81%88%E3%82%8B\"><\/span>Java\u306e\u8106\u5f31\u6027\u3078\u306e\u5bfe\u5fdc\u3092\u7d4c\u6b74\u3068\u3057\u3066\u4f1d\u3048\u308b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div style=\"background:#eff6ff;border-left:4px solid #2563eb;padding:16px 20px;border-radius:6px;margin-bottom:24px;\">\n<p style=\"margin:0;font-size:15px;line-height:1.7;color:#1e3a5f;\">\u5bfe\u8c61\u306e\u6570\u3001\u671f\u9593\u3001\u624b\u9806\u3092\u6570\u5b57\u3067\u66f8\u304f\u3068\u4f1d\u308f\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u8106\u5f31\u6027\u3078\u306e\u5bfe\u5fdc\u306f\u3001\u5f71\u97ff\u306e\u8abf\u67fb\u3001\u66f4\u65b0\u306e\u8a08\u753b\u3001\u30c6\u30b9\u30c8\u3001\u8a18\u9332\u307e\u3067\u3092\u4e00\u901a\u308a\u7d4c\u9a13\u3067\u304d\u308b\u4ed5\u4e8b\u3067\u3059\u3002PHP\u306e\u4f8b\u306f<a href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/22\/php-vulnerability-php2shell\/\" style=\"color:#2563eb;text-decoration:underline;\">PHP\u306e\u8106\u5f31\u6027\u300cphp2shell\u300d\u306e\u78ba\u8a8d\u65b9\u6cd5\u3068\u5bfe\u7b56<\/a>\u3001.NET\u306e\u79fb\u884c\u306e\u4f8b\u306f<a href=\"https:\/\/skilllog.jp\/blog\/2026\/10\/27\/dotnet-8-9-end-of-support\/\" style=\"color:#2563eb;text-decoration:underline;\">.NET 8\u306e\u30b5\u30dd\u30fc\u30c8\u7d42\u4e86\u3068\u79fb\u884c\u624b\u9806<\/a>\u3067\u3082\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002Java\u306e\u7d4c\u9a13\u306e\u66f8\u304d\u65b9\u306f<a href=\"https:\/\/skilllog.jp\/blog\/2026\/08\/15\/java-engineer-skill-sheet-writing-examples\/\" style=\"color:#2563eb;text-decoration:underline;\">Java\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b9\u30ad\u30eb\u30b7\u30fc\u30c8\u306e\u66f8\u304d\u65b9<\/a>\u3082\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E5%AF%BE%E5%BF%9C%E3%81%AE%E7%B5%8C%E9%A8%93%E3%82%92%E3%82%B9%E3%82%AD%E3%83%AB%E3%83%AD%E3%82%B0%E3%81%A7%E6%AE%8B%E3%81%99%E7%90%86%E7%94%B1\"><\/span>\u5bfe\u5fdc\u306e\u7d4c\u9a13\u3092\u30b9\u30ad\u30eb\u30ed\u30b0\u3067\u6b8b\u3059\u7406\u7531<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u8106\u5f31\u6027\u3078\u306e\u5bfe\u5fdc\u306f\u3001\u3069\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u3001\u4f55\u53f0\u306e\u30b5\u30fc\u30d0\u30fc\u3067\u3001\u3069\u308c\u304f\u3089\u3044\u306e\u671f\u9593\u3067\u66f4\u65b0\u3057\u305f\u304b\u3092\u66f8\u3051\u308b\u3068\u8a55\u4fa1\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002Excel\u3084Word\u3067\u7d4c\u6b74\u3092\u66f8\u304d\u8db3\u3057\u3066\u3044\u304f\u3068\u3001\u6848\u4ef6\u3054\u3068\u306b\u66f8\u304f\u9805\u76ee\u304c\u3070\u3089\u3064\u304d\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u898f\u6a21\u304c\u629c\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<a href=\"https:\/\/skilllog.jp\/?utm_source=blog&utm_medium=body_link&utm_campaign=oracle-java-vulnerability-2026-10\" style=\"color:#2563eb;text-decoration:underline;\">\u30b9\u30ad\u30eb\u30ed\u30b0<\/a>\u3067\u8a18\u9332\u3059\u308b\u3068\u3001\u6b21\u306e\u70b9\u3067\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul style=\"margin:0 0 20px 0;padding-left:24px;line-height:1.9;\">\n<li>\u9805\u76ee\u304c\u305d\u308d\u3046\uff1a\u6848\u4ef6\u3054\u3068\u306b\u671f\u9593\u30fb\u5f79\u5272\u30fb\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u898f\u6a21\u30fb\u30c1\u30fc\u30e0\u898f\u6a21\u30fb\u696d\u7a2e\u30fb\u62c5\u5f53\u5de5\u7a0b\u30fb\u6210\u679c\u3092\u540c\u3058\u9805\u76ee\u3067\u5165\u529b\u3059\u308b\u306e\u3067\u3001\u66f8\u304d\u6f0f\u308c\u304c\u306a\u304f\u3001\u6848\u4ef6\u3069\u3046\u3057\u3092\u6bd4\u3079\u3084\u3059\u3044<\/li>\n<li>\u4f53\u88c1\u3092\u6574\u3048\u308b\u624b\u9593\u304c\u306a\u3044\uff1a\u5165\u529b\u3057\u305f\u5185\u5bb9\u306fPDF\u51fa\u529b\u3067\u4f53\u88c1\u306e\u6574\u3063\u305f\u30b9\u30ad\u30eb\u30b7\u30fc\u30c8\u306b\u306a\u308a\u3001\u65b0\u3057\u3044\u6848\u4ef6\u3092\u8db3\u3057\u305f\u3089\u305d\u306e\u307e\u307e\u51fa\u3057\u76f4\u305b\u308b<\/li>\n<li>\u4f38\u3073\u305f\u30b9\u30ad\u30eb\u304c\u898b\u3048\u308b\uff1a\u30b9\u30ad\u30eb\u3054\u3068\u306bS\u30fbA\u30fbB\u306a\u3069\u306e\u81ea\u5df1\u8a55\u4fa1\u3068\u7d4c\u9a13\u5e74\u6570\u3092\u4e26\u3079\u3066\u78ba\u8a8d\u3067\u304d\u3001\u6b21\u306b\u4f38\u3070\u3059\u3068\u3053\u308d\u304c\u5206\u304b\u308b<\/li>\n<\/ul>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u4fdd\u5b88\u3084\u8106\u5f31\u6027\u5bfe\u5fdc\u306e\u7d4c\u9a13\u304c\u3001\u6c42\u4eba\u3084\u6848\u4ef6\u3067\u3069\u3046\u8a55\u4fa1\u3055\u308c\u305d\u3046\u304b\u3092\u3001<a href=\"#skilllog-consultation\" style=\"color:#2563eb;text-decoration:underline;\">\u8ee2\u8077\u30fb\u6848\u4ef6\u76f8\u8ac7<\/a>\u3067\u4e00\u7dd2\u306b\u78ba\u304b\u3081\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<div style=\"margin-top:48px;margin-bottom:24px;\">\n<h2 style=\"font-size:32px;font-weight:700;border-left:6px solid #2563eb;padding-left:16px;line-height:1.5;\"><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81\"><\/span>\u307e\u3068\u3081<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div style=\"background:#eff6ff;border-left:4px solid #2563eb;padding:16px 20px;border-radius:6px;margin-bottom:24px;\">\n<p style=\"margin:0;font-size:15px;line-height:1.7;color:#1e3a5f;\">\u5b9a\u4f8b\u306e55\u4ef6\u3068\u7dca\u6025\u306e\u8a3c\u660e\u66f8\u306e\u554f\u984c\u306e\u4e21\u65b9\u306b\u5bfe\u5fdc\u3057\u3001\u30e9\u30a4\u30bb\u30f3\u30b9\u3082\u78ba\u304b\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">Java\u306e\u8106\u5f31\u602755\u4ef6\u304c2026\u5e7410\u670820\u65e5\u306e\u5b9a\u4f8b\u66f4\u65b0\u3067\u4fee\u6b63\u3055\u308c\u3001\u7fcc21\u65e5\u306b\u306f\u8a3c\u660e\u66f8\u306b\u95a2\u3059\u308b\u7dca\u6025\u306e\u30a2\u30e9\u30fc\u30c8\u304c\u51fa\u307e\u3057\u305f\u3002\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u3067\u306f\u5b9a\u4f8b\u306e\u7248\u3082\u5f71\u97ff\u3092\u53d7\u3051\u308b\u5bfe\u8c61\u306a\u306e\u3067\u300121\u65e5\u4ee5\u964d\u306b\u51fa\u305f\u66f4\u65b0\u7248\u307e\u3067\u5165\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">java -version\u306a\u3069\u3067\u5bfe\u8c61\u3092\u78ba\u304b\u3081\u3001\u30a2\u30d7\u30ea\u306b\u540c\u68b1\u3055\u308c\u305fJava\u3084\u30b3\u30f3\u30c6\u30ca\u3082\u542b\u3081\u3066\u66f4\u65b0\u3057\u307e\u3057\u3087\u3046\u3002\u4f1a\u793e\u3067Oracle JDK 21\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u300121.0.13\u304b\u3089\u306e\u30e9\u30a4\u30bb\u30f3\u30b9\u306e\u5909\u66f4\u3082\u78ba\u304b\u3081\u3066\u304f\u3060\u3055\u3044\u3002\u516c\u5f0f\u306e\u60c5\u5831\u306f<a href=\"https:\/\/www.ipa.go.jp\/security\/security-alert\/2026\/1021-jre.html\" target=\"_blank\" rel=\"noopener\" style=\"color:#2563eb;text-decoration:underline;\">IPA\u306e\u6ce8\u610f\u559a\u8d77<\/a>\u3068<a href=\"https:\/\/www.oracle.com\/security-alerts\/cpuoct2026.html\" target=\"_blank\" rel=\"noopener\" style=\"color:#2563eb;text-decoration:underline;\">Oracle\u306e\u5b9a\u4f8b\u66f4\u65b0\u306e\u6848\u5185<\/a>\u3067\u78ba\u304b\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<div style=\"margin-top:48px;margin-bottom:24px;\">\n<h2 style=\"font-size:32px;font-weight:700;border-left:6px solid #2563eb;padding-left:16px;line-height:1.5;\"><span class=\"ez-toc-section\" id=\"%E3%82%88%E3%81%8F%E3%81%82%E3%82%8B%E8%B3%AA%E5%95%8F\"><\/span>\u3088\u304f\u3042\u308b\u8cea\u554f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div style=\"background:#eff6ff;border-left:4px solid #2563eb;padding:16px 20px;border-radius:6px;margin-bottom:24px;\">\n<p style=\"margin:0;font-size:15px;line-height:1.7;color:#1e3a5f;\">Java\u306e\u8106\u5f31\u6027\u306b\u3064\u3044\u3066\u3001\u3088\u304f\u5bc4\u305b\u3089\u308c\u308b\u8cea\u554f\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Java%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%AF%E4%BD%95%E4%BB%B6%E4%BF%AE%E6%AD%A3%E3%81%95%E3%82%8C%E3%81%BE%E3%81%97%E3%81%9F%E3%81%8B%EF%BC%9F\"><\/span>Java\u306e\u8106\u5f31\u6027\u306f\u4f55\u4ef6\u4fee\u6b63\u3055\u308c\u307e\u3057\u305f\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">2026\u5e7410\u6708\u306e\u5b9a\u4f8b\u66f4\u65b0\u3067\u3001Java SE\u306e55\u4ef6\u304c\u4fee\u6b63\u3055\u308c\u307e\u3057\u305f\u3002\u3046\u306149\u4ef6\u306f\u8a8d\u8a3c\u306a\u3057\u3067\u9060\u9694\u304b\u3089\u60aa\u7528\u3055\u308c\u3046\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E5%AE%9A%E4%BE%8B%E3%81%AE%E6%9B%B4%E6%96%B0%E7%89%88%EF%BC%8821013%E3%81%AA%E3%81%A9%EF%BC%89%E3%82%92%E5%85%A5%E3%82%8C%E3%82%8C%E3%81%B0%E5%8D%81%E5%88%86%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span>\u5b9a\u4f8b\u306e\u66f4\u65b0\u7248\uff0821.0.13\u306a\u3069\uff09\u3092\u5165\u308c\u308c\u3070\u5341\u5206\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u5341\u5206\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u7fcc\u65e5\u306e\u7dca\u6025\u30a2\u30e9\u30fc\u30c8\u306e\u5bfe\u8c61\u306b\u5b9a\u4f8b\u306e\u7248\u3082\u542b\u307e\u308c\u308b\u305f\u3081\u300121\u65e5\u4ee5\u964d\u306e\u66f4\u65b0\u7248\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"OpenJDK%E3%82%92%E4%BD%BF%E3%81%A3%E3%81%A6%E3%81%84%E3%82%8B%E5%A0%B4%E5%90%88%E3%82%82%E5%AF%BE%E8%B1%A1%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span>OpenJDK\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u5bfe\u8c61\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u591a\u304f\u306e\u5834\u5408\u3001\u540c\u3058\u554f\u984c\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002\u4f7f\u3063\u3066\u3044\u308b\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u63d0\u4f9b\u5143\u306e\u6848\u5185\u306b\u6cbf\u3063\u3066\u66f4\u65b0\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Java%E3%82%92%E6%9B%B4%E6%96%B0%E3%81%97%E3%81%9F%E3%82%89%E3%82%A2%E3%83%97%E3%83%AA%E3%81%AE%E5%86%8D%E8%B5%B7%E5%8B%95%E3%81%AF%E5%BF%85%E8%A6%81%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span>Java\u3092\u66f4\u65b0\u3057\u305f\u3089\u30a2\u30d7\u30ea\u306e\u518d\u8d77\u52d5\u306f\u5fc5\u8981\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u5fc5\u8981\u3067\u3059\u3002\u52d5\u3044\u3066\u3044\u308b\u30a2\u30d7\u30ea\u306f\u3001\u518d\u8d77\u52d5\u3059\u308b\u307e\u3067\u53e4\u3044Java\u306e\u307e\u307e\u52d5\u304d\u7d9a\u3051\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Oracle_JDK_21%E3%81%AF%E7%84%A1%E5%84%9F%E3%81%A7%E4%BD%BF%E3%81%88%E3%81%AA%E3%81%8F%E3%81%AA%E3%81%A3%E3%81%9F%E3%81%AE%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span>Oracle JDK 21\u306f\u7121\u511f\u3067\u4f7f\u3048\u306a\u304f\u306a\u3063\u305f\u306e\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u500b\u4eba\u3084\u958b\u767a\u3067\u306e\u5229\u7528\u306a\u3069\u306f\u7121\u511f\u3067\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u5229\u7528\u306f\u6761\u4ef6\u304c\u5909\u308f\u308b\u306e\u3067\u3001Oracle\u306eFAQ\u3067\u78ba\u304b\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<p style=\"margin:0 0 20px 0;line-height:1.9;\">\u3053\u3053\u307e\u3067\u306e\u5185\u5bb9\u3092\u8e0f\u307e\u3048\u3066\u3001\u307e\u305a\u306f\u30b9\u30ad\u30eb\u30ed\u30b0\u306b\u7121\u6599\u3067\u767b\u9332\u3057\u3001\u62c5\u5f53\u3057\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u306eJava\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u5165\u529b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002Java\u306e\u7d4c\u9a13\u304c\u751f\u304d\u308b\u6c42\u4eba\u3084\u6848\u4ef6\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001<a href=\"#skilllog-consultation\" style=\"color:#2563eb;text-decoration:underline;\">\u8ee2\u8077\u30fb\u6848\u4ef6\u76f8\u8ac7<\/a>\u3067\u4e00\u7dd2\u306b\u78ba\u304b\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<div style=\"clear:both;display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap;margin:32px 0;padding:8px 0;line-height:1.6;\"><a href=\"https:\/\/skilllog.jp\/users\/sign_up?utm_source=blog&utm_medium=article&utm_campaign=oracle-java-vulnerability-2026-10\" style=\"background:#2563eb;color:#ffffff;padding:14px 28px;border-radius:8px;text-decoration:none;font-weight:700;text-align:center;white-space:nowrap;display:inline-block;line-height:1.4;\">\u7d4c\u6b74\u3092\u7121\u6599\u3067\u8a18\u9332\u3059\u308b<\/a><a href=\"#skilllog-consultation\" style=\"background:#06c755;color:#ffffff;padding:14px 28px;border-radius:8px;text-decoration:none;font-weight:700;text-align:center;white-space:nowrap;display:inline-block;line-height:1.4;\">\u8ee2\u8077\u30fb\u6848\u4ef6\u76f8\u8ac7\u3092\u3059\u308b<\/a><\/div>\n<div style=\"margin-top:48px;\"><a href=\"https:\/\/skilllog.jp\/?utm_source=blog&utm_medium=footer_banner&utm_campaign=oracle-java-vulnerability-2026-10&utm_content=random_banner\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" src=\"https:\/\/skilllog.jp\/blog\/wp-content\/uploads\/2026\/04\/\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u305f\u3081\u306e.png\" alt=\"\u30b9\u30ad\u30eb\u30ed\u30b0\" style=\"width:100%;height:auto;border-radius:12px;\" \/><\/a><\/div>\n<p><script 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