{"id":984,"date":"2026-11-12T23:40:39","date_gmt":"2026-11-12T15:40:39","guid":{"rendered":"https:\/\/btc354.com\/index.php\/2026\/11\/12\/pulsemate-security-0e0685e8780be9944b145c8362efb9f0b35f8f15819c5a8282eb0529eda37ca5\/"},"modified":"2026-11-12T23:40:39","modified_gmt":"2026-11-12T15:40:39","slug":"pulsemate-security-0e0685e8780be9944b145c8362efb9f0b35f8f15819c5a8282eb0529eda37ca5","status":"publish","type":"post","link":"https:\/\/btc354.com\/index.php\/2026\/11\/12\/pulsemate-security-0e0685e8780be9944b145c8362efb9f0b35f8f15819c5a8282eb0529eda37ca5\/","title":{"rendered":"PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u6df1\u5ea6\u5e94\u6025\u54cd\u5e94\uff1aCVE-2026-6460 \u4ece DDL \u653b\u51fb\u9762\u5230\u4efb\u610f\u4ee3\u7801\u6267\u884c\u7684\u67b6\u6784\u7ea7\u6839\u56e0\u62c6\u89e3"},"content":{"rendered":"<div class=\"doc-spec-grid\">\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\ud83c\udfaf \u6838\u5fc3\u6280\u672f<\/span><span class=\"doc-spec-value\">PostgreSQL \u7c7b\u578b\u7cfb\u7edf \/ DDL \u6267\u884c\u5f15\u64ce<\/span><\/div>\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\u26a1 \u67b6\u6784\u96be\u5ea6<\/span><span class=\"doc-spec-value\">\u8d44\u6df1\u67b6\u6784\u7ea7 (Level 4)<\/span><\/div>\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\ud83d\ude80 \u6838\u5fc3\u6536\u76ca<\/span><span class=\"doc-spec-value\">\u963b\u65ad RCE \u653b\u51fb\u9762 \/ 100% \u8986\u76d6\u53d7\u5f71\u54cd\u7248\u672c<\/span><\/div>\n<\/div>\n<blockquote class=\"doc-lead\"><p><strong>\u5bfc\u8bed\uff1a<\/strong>PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e CVE-2026-6460 \u4ee5 CVSS 8.8 \u7684\u9ad8\u5371\u8bc4\u5206\u6495\u5f00\u4e86\u4e00\u4e2a\u88ab\u957f\u671f\u5ffd\u89c6\u7684\u653b\u51fb\u9762\u2014\u2014\u5bf9\u8c61\u521b\u5efa\u8005\u4ec5\u51ed\u4f4e\u6743\u9650\u5373\u53ef\u901a\u8fc7 <code>ALTER ... SET DATA TYPE<\/code> \u7b49 DDL \u8def\u5f84\uff0c\u4ee5\u6570\u636e\u5e93\u64cd\u4f5c\u7cfb\u7edf\u7528\u6237\u8eab\u4efd\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u8fd9\u4e0d\u662f\u4e00\u4e2a\u5b64\u7acb\u7684\u8fb9\u754c\u68c0\u67e5\u758f\u6f0f\uff0c\u800c\u662f\u7c7b\u578b\u503c\u8ffd\u8e2a\u673a\u5236\u5728\u6570\u636e\u5b57\u5178\u3001PL\/pgSQL \u53d8\u91cf\u4e0e\u6267\u884c\u5f15\u64ce\u4e4b\u95f4\u957f\u671f\u201c\u4e0d\u81ea\u8bc1\u8eab\u4efd\u201d\u6240\u7d2f\u79ef\u7684\u7cfb\u7edf\u6027\u503a\u52a1\u3002\u672c\u6587\u4ee5\u4e00\u7ebf\u67b6\u6784\u5e08\u89c6\u89d2\uff0c\u4ece\u653b\u51fb\u94fe\u8fd8\u539f\u3001\u5185\u6838\u6839\u56e0\u62c6\u89e3\u3001\u7248\u672c\u5347\u7ea7\u77e9\u9635\u5230\u751f\u4ea7\u5e94\u6025\u7f13\u89e3\uff0c\u7ed9\u51fa\u4e00\u5957\u53ef\u76f4\u63a5\u843d\u5730\u7684\u54cd\u5e94\u65b9\u6848\u3002<\/p><\/blockquote>\n<div class=\"doc-arch-card\">\n<div class=\"doc-arch-header\">\n<div class=\"doc-arch-title-wrap\">\n      <span class=\"doc-arch-title\"><span class=\"icon\">\ud83d\udcd0<\/span> CVE-2026-6460 \u7c7b\u578b\u6df7\u6dc6\u653b\u51fb\u94fe\u4e0e\u9632\u5fa1\u7eb5\u6df1\u5168\u666f<\/span><br \/>\n      <span class=\"doc-arch-badge\">\u4f01\u4e1a\u7ea7\u67b6\u6784\u89c4\u8303<\/span>\n    <\/div>\n<div class=\"doc-arch-actions\">\n      <button type=\"button\" class=\"doc-arch-btn btn-copy-raw\">\ud83d\udccb \u590d\u5236\u6e90\u7801<\/button><br \/>\n      <button type=\"button\" class=\"doc-arch-btn btn-zoom-arch\">\ud83d\udd0d \u653e\u5927\u67e5\u770b<\/button>\n    <\/div>\n<\/p><\/div>\n<pre class=\"mermaid\">\nflowchart TD\n    subgraph \u653b\u51fb\u9762 [\"\u653b\u51fb\u5165\u53e3\u5c42 (Attack Surface Tier)\"]\n        A[\"\u4f4e\u6743\u9650\u5bf9\u8c61\u521b\u5efa\u8005 (Object Creator)\"] --&gt; B[\"ALTER ... SET DATA TYPE \u4e3b\u653b\u51fb\u8def\u5f84\"]\n        A --&gt; C[\"ALTER TABLE ADD COLUMN; ROLLBACK \u56de\u6eda\u810f\u503c\u8def\u5f84\"]\n    end\n    subgraph \u5185\u6838\u5c42 [\"\u7c7b\u578b\u7cfb\u7edf\u4e0e\u6267\u884c\u5f15\u64ce (Type System Tier)\"]\n        B --&gt; D[\"\u7c7b\u578b\u503c\u8ffd\u8e2a\u7f3a\u5931 (Values Not Self-Identifying)\"]\n        C --&gt; D\n        D --&gt; E[\"\u6570\u636e\u5b57\u5178\u6b8b\u7559\u9648\u65e7\u7c7b\u578b\u503c (Stale Catalog Entries)\"]\n        D --&gt; F[\"PL\/pgSQL \u53d8\u91cf\u7c7b\u578b\u6c61\u67d3 (Variable Confusion)\"]\n    end\n    subgraph \u5229\u7528\u5c42 [\"\u4ee3\u7801\u6267\u884c\u5c42 (Exploitation Tier)\"]\n        E --&gt; G[\"\u7c7b\u578b\u6df7\u6dc6\u89e6\u53d1\u51fd\u6570\u6307\u9488\u9519\u4f4d\"]\n        F --&gt; G\n        G --&gt; H[\"\u4ee5 postgres OS \u7528\u6237\u6267\u884c\u4efb\u610f\u4ee3\u7801 (RCE)\"]\n    end\n    subgraph \u9632\u5fa1\u5c42 [\"\u7eb5\u6df1\u9632\u5fa1\u4e0e\u7f13\u89e3 (Defense Tier)\"]\n        H -.-&gt; I[\"\u5347\u7ea7\u81f3 18.7 \/ 17.12 \/ 16.16 \/ 15.20 \/ 14.25\"]\n        H -.-&gt; J[\"\u64a4\u9500\u975e\u53ef\u4fe1\u89d2\u8272 CREATE \u6743\u9650\"]\n        H -.-&gt; K[\"DDL \u5ba1\u8ba1\u4e0e\u56de\u6eda\u4e8b\u52a1\u76d1\u63a7\"]\n    end\n  <\/pre>\n<div class=\"doc-arch-caption\">\u56fe 1: PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u653b\u51fb\u94fe\u4ece DDL \u5165\u53e3\u5230 RCE \u7684\u5b8c\u6574\u6d41\u5411\uff0c\u4ee5\u53ca\u4e09\u5c42\u9632\u5fa1\u7eb5\u6df1\u5e03\u5c40<\/div>\n<\/div>\n<h2 class=\"doc-h2\">\u4e00\u3001\u6f0f\u6d1e\u901f\u89c8\uff1a\u4e3a\u4ec0\u4e48 PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u503c\u5f97\u6700\u9ad8\u7ea7\u522b\u54cd\u5e94<\/h2>\n<p class=\"doc-p\">CVE-2026-6460 \u88ab NVD \u8bc4\u5b9a\u4e3a High \u7ea7\u522b\uff0cCVSS v3 \u57fa\u7840\u8bc4\u5206 8.8\uff0c\u5176\u5411\u91cf\u4e3a <code>AV:N\/AC:L\/PR:L\/UI:N\/S:U\/C:H\/I:H\/A:H<\/code>\u3002\u7ffb\u8bd1\u6210\u67b6\u6784\u8bed\u8a00\uff1a\u653b\u51fb\u8005\u53ef\u4ee5\u8fdc\u7a0b\u53d1\u8d77\u3001\u653b\u51fb\u590d\u6742\u5ea6\u4f4e\u3001\u4ec5\u9700\u4f4e\u6743\u9650\u3001\u65e0\u9700\u7528\u6237\u4ea4\u4e92\uff0c\u4e14\u5bf9\u673a\u5bc6\u6027\u3001\u5b8c\u6574\u6027\u3001\u53ef\u7528\u6027\u5747\u9020\u6210\u9ad8\u5f71\u54cd\u3002\u8fd9\u610f\u5473\u7740\u4e00\u4e2a\u4ec5\u88ab\u6388\u4e88\u201c\u521b\u5efa\u5bf9\u8c61\u201d\u6743\u9650\u7684\u666e\u901a\u4e1a\u52a1\u8d26\u53f7\uff0c\u5c31\u8db3\u4ee5\u64ac\u52a8\u6574\u4e2a\u6570\u636e\u5e93\u5b9e\u4f8b\u6240\u5728\u4e3b\u673a\u7684\u63a7\u5236\u6743\u3002<\/p>\n<div class=\"doc-table-wrapper\">\n<table class=\"doc-table\">\n<thead>\n<tr>\n<th>\u8bc4\u4f30\u7ef4\u5ea6<\/th>\n<th>\u4f20\u7edf\u8ba4\u77e5\uff08DDL \u4ec5\u5f71\u54cd\u5143\u6570\u636e\uff09<\/th>\n<th>CVE-2026-6460 \u73b0\u5b9e<\/th>\n<th>\u67b6\u6784\u5f71\u54cd<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u653b\u51fb\u524d\u63d0<\/td>\n<td>\u9700\u8d85\u7ea7\u7528\u6237\u6216\u6587\u4ef6\u7cfb\u7edf\u6743\u9650<\/td>\n<td>\u4ec5\u9700\u5bf9\u8c61\u521b\u5efa\u8005\u4f4e\u6743\u9650<\/td>\n<td><span class=\"badge-tag-green\">\u6743\u9650\u8fb9\u754c\u5931\u6548<\/span><\/td>\n<\/tr>\n<tr>\n<td>\u653b\u51fb\u8def\u5f84<\/td>\n<td>SQL \u6ce8\u5165 \/ \u6269\u5c55\u52a0\u8f7d<\/td>\n<td>ALTER SET DATA TYPE \u7b49\u6807\u51c6 DDL<\/td>\n<td><span class=\"badge-tag-green\">\u5408\u6cd5\u8bed\u6cd5\u5373\u6b66\u5668<\/span><\/td>\n<\/tr>\n<tr>\n<td>\u5f71\u54cd\u8303\u56f4<\/td>\n<td>\u5355\u5e93\u6570\u636e\u6cc4\u9732<\/td>\n<td>\u4ee5 postgres OS \u7528\u6237\u6267\u884c\u4efb\u610f\u4ee3\u7801<\/td>\n<td><span class=\"badge-tag-green\">\u4e3b\u673a\u7ea7\u6ca6\u9677<\/span><\/td>\n<\/tr>\n<tr>\n<td>\u68c0\u6d4b\u96be\u5ea6<\/td>\n<td>\u5f02\u5e38 SQL \u53ef\u88ab WAF \u62e6\u622a<\/td>\n<td>DDL \u5c5e\u6b63\u5e38\u8fd0\u7ef4\u64cd\u4f5c<\/td>\n<td><span class=\"badge-tag-green\">\u5ba1\u8ba1\u76f2\u533a<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"doc-callout doc-callout-danger\">\n<div class=\"doc-callout-title\">\ud83d\udea8 \u4e25\u91cd\u9690\u60a3\u544a\u8b66<\/div>\n<p>\u53d7\u5f71\u54cd\u7248\u672c\u8986\u76d6 PostgreSQL 14 \u81f3 18 \u7684\u5e7f\u6cdb\u533a\u95f4\uff1a18.7\u300117.12\u300116.16\u300115.20\u300114.25 \u4e4b\u524d\u7684\u5168\u90e8\u7248\u672c\u5747\u5b58\u5728\u98ce\u9669\u3002\u4efb\u4f55\u5141\u8bb8\u4e1a\u52a1\u65b9\u6216\u7b2c\u4e09\u65b9\u4ee5\u201c\u5bf9\u8c61\u521b\u5efa\u8005\u201d\u8eab\u4efd\u8fde\u63a5\u7684\u751f\u4ea7\u5b9e\u4f8b\uff0c\u90fd\u5e94\u89c6\u4e3a\u66b4\u9732\u5728\u653b\u51fb\u9762\u5185\u3002<\/p><\/div>\n<h2 class=\"doc-h2\">\u4e8c\u3001\u6839\u56e0\u62c6\u89e3\uff1aPostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u7684\u5185\u6838\u7ea7\u75c5\u7076<\/h2>\n<p class=\"doc-p\">\u5b98\u65b9\u516c\u544a\u7528\u4e86\u4e00\u53e5\u6781\u5176\u514b\u5236\u5374\u4fe1\u606f\u91cf\u5de8\u5927\u7684\u63cf\u8ff0\uff1a\u201cThe system had inadequate tracking of typed values, and values were not self-identifying.\u201d \u8fd9\u53e5\u8bdd\u662f\u6574\u4e2a PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u7684\u75c5\u7406\u6838\u5fc3\u3002\u5728 PostgreSQL \u7684\u6267\u884c\u6a21\u578b\u91cc\uff0c\u4e00\u4e2a Datum \u503c\u672c\u8eab\u5e76\u4e0d\u643a\u5e26\u7c7b\u578b\u6807\u7b7e\uff0c\u7c7b\u578b\u4fe1\u606f\u7531\u5916\u90e8\u7684 TupleDesc\u3001\u8868\u8fbe\u5f0f\u72b6\u6001\u8282\u70b9\u6216 PL\/pgSQL \u53d8\u91cf\u63cf\u8ff0\u7b26\u6765\u201c\u65c1\u8bc1\u201d\u3002\u4e00\u65e6\u8fd9\u4e9b\u65c1\u8bc1\u5728 DDL \u53d8\u66f4\u3001\u4e8b\u52a1\u56de\u6eda\u6216\u7f13\u5b58\u590d\u7528\u7684\u65f6\u5e8f\u7f1d\u9699\u4e2d\u53d1\u751f\u9519\u4f4d\uff0c\u503c\u5c31\u4f1a\u4ee5\u9519\u8bef\u7684\u7c7b\u578b\u88ab\u89e3\u91ca\u3002<\/p>\n<h3 class=\"doc-h3\">2.1 \u7c7b\u578b\u503c\u4e0d\u81ea\u8bc1\u8eab\u4efd\uff1aDatum \u6a21\u578b\u7684\u5148\u5929\u7ea6\u675f<\/h3>\n<p class=\"doc-p\">PostgreSQL \u7684 <code>Datum<\/code> \u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u65e0\u7c7b\u578b\u6807\u7b7e\u7684\u673a\u5668\u5b57\uff0c\u7c7b\u578b\u8bed\u4e49\u5b8c\u5168\u4f9d\u8d56\u8c03\u7528\u65b9\u4f20\u5165\u7684 <code>Oid<\/code> \u4e0e <code>int32 typmod<\/code>\u3002\u8fd9\u79cd\u8bbe\u8ba1\u5728\u6027\u80fd\u4e0a\u6781\u4e3a\u9ad8\u6548\u2014\u2014\u907f\u514d\u4e86\u6bcf\u4e2a\u503c\u643a\u5e26\u7c7b\u578b\u5934\u7684\u5f00\u9500\uff0c\u4f46\u4e5f\u610f\u5473\u7740\u7cfb\u7edf\u5fc5\u987b\u5728\u6240\u6709\u8def\u5f84\u4e0a\u4e25\u683c\u4fdd\u8bc1\u201c\u503c\u4e0e\u5176\u7c7b\u578b\u63cf\u8ff0\u7b26\u59cb\u7ec8\u540c\u6e90\u540c\u7248\u672c\u201d\u3002\u5f53 <code>ALTER ... SET DATA TYPE<\/code> \u4fee\u6539\u5217\u7c7b\u578b\u65f6\uff0c\u82e5\u67d0\u4e9b\u7f13\u5b58\u8def\u5f84\uff08\u5982 relcache\u3001plancache\u3001PL\/pgSQL \u7f16\u8bd1\u7f13\u5b58\uff09\u672a\u540c\u6b65\u5931\u6548\uff0c\u65e7\u503c\u5c31\u4f1a\u4ee5\u65b0\u7c7b\u578b\u7684\u89e3\u91ca\u65b9\u5f0f\u88ab\u8bfb\u53d6\u3002<\/p>\n<h3 class=\"doc-h3\">2.2 \u6570\u636e\u5b57\u5178\u810f\u503c\uff1a\u56de\u6eda\u8def\u5f84\u4e0b\u7684\u9648\u65e7\u6761\u76ee<\/h3>\n<p class=\"doc-p\">\u516c\u544a\u7279\u522b\u70b9\u540d\u7684\u7b2c\u4e8c\u6761\u653b\u51fb\u8def\u5f84\u6781\u5177\u542f\u53d1\u6027\uff1a<code>ALTER TABLE ... ADD COLUMN; ROLLBACK; ALTER TABLE ... ADD COLUMN<\/code>\u3002\u5728\u4e8b\u52a1\u56de\u6eda\u540e\uff0c\u7cfb\u7edf\u76ee\u5f55\uff08pg_attribute\u3001pg_type \u7b49\uff09\u4e2d\u7684\u6761\u76ee\u7406\u8bba\u4e0a\u5e94\u6062\u590d\u5230\u4e00\u81f4\u72b6\u6001\uff0c\u4f46\u7c7b\u578b\u503c\u7684\u8ffd\u8e2a\u4e0d\u8db3\u4f7f\u5f97\u67d0\u4e9b\u4e2d\u95f4\u6001\u6b8b\u7559\u4e0b\u6765\u3002\u653b\u51fb\u8005\u901a\u8fc7\u7cbe\u5fc3\u6784\u9020\u7684 DDL \u5e8f\u5217\uff0c\u53ef\u4ee5\u5728\u6570\u636e\u5b57\u5178\u4e2d\u5236\u9020\u201c\u7c7b\u578b\u63cf\u8ff0\u4e0e\u5b9e\u9645\u5b58\u50a8\u503c\u4e0d\u5339\u914d\u201d\u7684\u9648\u65e7\u6761\u76ee\uff0c\u4e3a\u540e\u7eed\u7684\u7c7b\u578b\u6df7\u6dc6\u5229\u7528\u57cb\u4e0b\u4f0f\u7b14\u3002<\/p>\n<div class=\"doc-callout doc-callout-info\">\n<div class=\"doc-callout-title\">\ud83d\udca1 \u67b6\u6784\u6838\u5fc3\u51b3\u7b56<\/div>\n<p>\u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u7684\u672c\u8d28\u4e0d\u662f\u5355\u4e00\u51fd\u6570\u7684\u8d8a\u754c\uff0c\u800c\u662f\u201c\u7c7b\u578b\u5143\u6570\u636e\u201d\u4e0e\u201c\u7c7b\u578b\u503c\u201d\u5728\u591a\u7ea7\u7f13\u5b58\u4e0e\u4e8b\u52a1\u8fb9\u754c\u4e4b\u95f4\u7f3a\u4e4f\u5f3a\u4e00\u81f4\u6027\u5951\u7ea6\u3002\u4fee\u590d\u65b9\u6848\u5fc5\u7136\u6d89\u53ca\u7c7b\u578b\u503c\u8ffd\u8e2a\u673a\u5236\u7684\u589e\u5f3a\uff0c\u800c\u975e\u7b80\u5355\u7684\u8fb9\u754c\u68c0\u67e5\u8865\u4e01\u2014\u2014\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u5b98\u65b9\u9009\u62e9\u5728\u6b21\u7248\u672c\u4e2d\u96c6\u4e2d\u4fee\u590d\uff0c\u800c\u975e\u53d1\u5e03\u72ec\u7acb\u70ed\u8865\u4e01\u3002<\/p><\/div>\n<h3 class=\"doc-h3\">2.3 PL\/pgSQL \u53d8\u91cf\u6c61\u67d3\uff1a\u5b58\u50a8\u8fc7\u7a0b\u6210\u4e3a\u653e\u5927\u5668<\/h3>\n<p class=\"doc-p\">\u516c\u544a\u660e\u786e\u6307\u51fa\u9648\u65e7\u503c\u53ef\u80fd\u51fa\u73b0\u5728\u201cPL\/pgSQL variables\u201d\u4e2d\u3002PL\/pgSQL \u5728\u9996\u6b21\u6267\u884c\u65f6\u4f1a\u7f16\u8bd1\u5e76\u7f13\u5b58\u6267\u884c\u8ba1\u5212\u4e0e\u53d8\u91cf\u7c7b\u578b\u63cf\u8ff0\uff0c\u82e5\u5e95\u5c42\u8868\u7684\u5217\u7c7b\u578b\u5728\u7f13\u5b58\u751f\u547d\u5468\u671f\u5185\u88ab DDL \u4fee\u6539\uff0c\u5df2\u7f13\u5b58\u7684\u53d8\u91cf\u69fd\u4f4d\u53ef\u80fd\u4ecd\u6309\u65e7\u7c7b\u578b\u5e03\u5c40\u89e3\u91ca\u65b0\u503c\u3002\u5bf9\u4e8e\u4f7f\u7528\u5927\u91cf\u5b58\u50a8\u8fc7\u7a0b\u3001\u89e6\u53d1\u5668\u4e0e\u51fd\u6570\u5c01\u88c5\u7684\u4e1a\u52a1\u7cfb\u7edf\uff0c\u8fd9\u6761\u8def\u5f84\u5c06\u7c7b\u578b\u6df7\u6dc6\u4ece\u201c\u5355\u6761 SQL \u7684\u5076\u53d1\u9519\u8bef\u201d\u653e\u5927\u4e3a\u201c\u53ef\u7a33\u5b9a\u590d\u73b0\u7684\u5229\u7528\u539f\u8bed\u201d\u3002<\/p>\n<h2 class=\"doc-h2\">\u4e09\u3001\u5e94\u6025\u54cd\u5e94\uff1aPostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u7684\u751f\u4ea7\u5904\u7f6e\u77e9\u9635<\/h2>\n<p class=\"doc-p\">\u9762\u5bf9 CVSS 8.8 \u4e14\u653b\u51fb\u8def\u5f84\u4e3a\u5408\u6cd5 DDL \u7684\u6f0f\u6d1e\uff0c\u4f20\u7edf\u7684 WAF \u89c4\u5219\u51e0\u4e4e\u65e0\u80fd\u4e3a\u529b\u3002\u6211\u5efa\u8bae\u6309\u201c\u6b62\u8840\u2014\u4fee\u590d\u2014\u52a0\u56fa\u201d\u4e09\u9636\u6bb5\u63a8\u8fdb\uff0c\u4f18\u5148\u7ea7\u4ece\u9ad8\u5230\u4f4e\u5982\u4e0b\u3002<\/p>\n<h3 class=\"doc-h3\">3.1 \u7b2c\u4e00\u9636\u6bb5\uff1a\u6743\u9650\u6b62\u8840\uff08\u5c0f\u65f6\u7ea7\uff09<\/h3>\n<p class=\"doc-p\">\u5728\u5b8c\u6210\u5347\u7ea7\u7a97\u53e3\u534f\u8c03\u524d\uff0c\u7acb\u5373\u6536\u7d27\u5bf9\u8c61\u521b\u5efa\u6743\u9650\u662f\u6700\u6709\u6548\u7684\u4e34\u65f6\u7f13\u89e3\u3002\u6838\u5fc3\u539f\u5219\u662f\uff1a\u4e0d\u5141\u8bb8\u4efb\u4f55\u975e\u53ef\u4fe1\u89d2\u8272\u5728\u4e1a\u52a1\u5e93\u4e2d\u6301\u6709 <code>CREATE<\/code> \u6743\u9650\uff0c\u5c24\u5176\u662f\u5bf9 public schema \u7684\u9ed8\u8ba4\u521b\u5efa\u6743\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-title=\"emergency_lockdown.sql\">-- 1. \u64a4\u9500 public schema \u7684\u9ed8\u8ba4\u521b\u5efa\u6743\u9650\uff08PostgreSQL 15+ \u9ed8\u8ba4\u5df2\u6536\u7d27\uff0c\u4f4e\u7248\u672c\u9700\u663e\u5f0f\u6267\u884c\uff09\nREVOKE CREATE ON SCHEMA public FROM PUBLIC;\n\n-- 2. \u5ba1\u8ba1\u5f53\u524d\u6301\u6709 CREATE \u6743\u9650\u7684\u975e\u8d85\u7ea7\u7528\u6237\u89d2\u8272\nSELECT nspname AS schema_name,\n       pg_get_userbyid(nspowner) AS owner,\n       has_schema_privilege('app_user', nspname, 'CREATE') AS app_can_create\nFROM pg_namespace\nWHERE nspname NOT LIKE 'pg_%' AND nspname  'information_schema';\n\n-- 3. \u5bf9\u4e1a\u52a1\u8d26\u53f7\u56de\u6536\u5efa\u8868\u4e0e\u6539\u7c7b\u578b\u80fd\u529b\nREVOKE CREATE ON SCHEMA public FROM app_user;\nREVOKE TRIGGER ON ALL TABLES IN SCHEMA public FROM app_user;\n\n-- 4. \u68c0\u67e5\u662f\u5426\u5b58\u5728\u5f02\u5e38\u7684\u56de\u6eda\u6b8b\u7559\u5217\uff08\u8f85\u52a9\u6392\u67e5\u810f\u503c\uff09\nSELECT c.relname, a.attname, a.atttypid::regtype, a.attisdropped\nFROM pg_attribute a\nJOIN pg_class c ON c.oid = a.attrelid\nWHERE a.attisdropped = true\n  AND c.relnamespace = 'public'::regnamespace\nORDER BY c.relname, a.attnum;<\/pre>\n<div class=\"doc-callout doc-callout-warning\">\n<div class=\"doc-callout-title\">\u26a0\ufe0f \u751f\u4ea7\u907f\u5751\u98ce\u9669<\/div>\n<p>\u76f4\u63a5\u56de\u6536 CREATE \u6743\u9650\u53ef\u80fd\u4e2d\u65ad\u4f9d\u8d56\u52a8\u6001\u5efa\u8868\u7684\u4e1a\u52a1\uff08\u5982\u591a\u79df\u6237\u5206\u8868\u3001\u4e34\u65f6\u8868\u5de5\u4f5c\u6d41\uff09\u3002\u5efa\u8bae\u5148\u5728\u5f71\u5b50\u5e93\u9a8c\u8bc1\u6743\u9650\u77e9\u9635\uff0c\u5e76\u901a\u8fc7 pg_stat_activity \u4e0e\u5ba1\u8ba1\u65e5\u5fd7\u786e\u8ba4\u65e0\u5728\u7ebf DDL \u4f9d\u8d56\u540e\u518d\u6267\u884c\u3002<\/p><\/div>\n<h3 class=\"doc-h3\">3.2 \u7b2c\u4e8c\u9636\u6bb5\uff1a\u7248\u672c\u5347\u7ea7\uff08\u5929\u7ea7\uff09<\/h3>\n<p class=\"doc-p\">\u5b98\u65b9\u4fee\u590d\u7248\u672c\u5df2\u660e\u786e\uff1aPostgreSQL 18.7\u300117.12\u300116.16\u300115.20\u300114.25\u3002\u8bf7\u5bf9\u7167\u4f60\u7684\u5b9e\u4f8b\u7248\u672c\uff0c\u9009\u62e9\u5bf9\u5e94\u7684\u5c0f\u7248\u672c\u5347\u7ea7\u8def\u5f84\u3002\u5c0f\u7248\u672c\u5347\u7ea7\u901a\u5e38\u65e0\u9700 pg_upgrade\uff0c\u76f4\u63a5\u66ff\u6362\u4e8c\u8fdb\u5236\u5e76\u91cd\u542f\u5373\u53ef\uff0c\u4f46\u52a1\u5fc5\u5728\u5347\u7ea7\u524d\u5b8c\u6210\u903b\u8f91\u5907\u4efd\u4e0e WAL \u5f52\u6863\u6821\u9a8c\u3002<\/p>\n<div class=\"doc-table-wrapper\">\n<table class=\"doc-table\">\n<thead>\n<tr>\n<th>\u5f53\u524d\u5927\u7248\u672c<\/th>\n<th>\u6700\u4f4e\u5b89\u5168\u7248\u672c<\/th>\n<th>\u5347\u7ea7\u65b9\u5f0f<\/th>\n<th>\u505c\u673a\u7a97\u53e3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PostgreSQL 18.x<\/td>\n<td>18.7<\/td>\n<td>\u4e8c\u8fdb\u5236\u66ff\u6362 + \u91cd\u542f<\/td>\n<td><span class=\"badge-tag-green\">\u5206\u949f\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>PostgreSQL 17.x<\/td>\n<td>17.12<\/td>\n<td>\u4e8c\u8fdb\u5236\u66ff\u6362 + \u91cd\u542f<\/td>\n<td><span class=\"badge-tag-green\">\u5206\u949f\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>PostgreSQL 16.x<\/td>\n<td>16.16<\/td>\n<td>\u4e8c\u8fdb\u5236\u66ff\u6362 + \u91cd\u542f<\/td>\n<td><span class=\"badge-tag-green\">\u5206\u949f\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>PostgreSQL 15.x<\/td>\n<td>15.20<\/td>\n<td>\u4e8c\u8fdb\u5236\u66ff\u6362 + \u91cd\u542f<\/td>\n<td><span class=\"badge-tag-green\">\u5206\u949f\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>PostgreSQL 14.x<\/td>\n<td>14.25<\/td>\n<td>\u4e8c\u8fdb\u5236\u66ff\u6362 + \u91cd\u542f<\/td>\n<td><span class=\"badge-tag-green\">\u5206\u949f\u7ea7<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<details class=\"doc-accordion\">\n<summary>\u70b9\u51fb\u5c55\u5f00\uff1aDebian\/Ubuntu \u4e0e RHEL \u7cfb\u5347\u7ea7\u6267\u884c\u547d\u4ee4\u4e0e\u56de\u6eda\u9884\u6848<\/summary>\n<div class=\"doc-accordion-content\">\n<pre><code class=\"language-bash\"># Debian \/ Ubuntu (PGDG \u6e90)\nsudo apt update\nsudo apt install --only-upgrade postgresql-16\nsudo systemctl restart postgresql@16-main\n\n# RHEL \/ Rocky \/ AlmaLinux\nsudo dnf update postgresql16-server postgresql16-libs\nsudo systemctl restart postgresql-16\n\n# \u5347\u7ea7\u524d\u5fc5\u5907\uff1a\u903b\u8f91\u5907\u4efd + \u7248\u672c\u786e\u8ba4\npg_dumpall -U postgres &gt; \/backup\/pg_pre_upgrade_$(date +%F).sql\npsql -c \"SELECT version();\"\n\n# \u56de\u6eda\u9884\u6848\uff1a\u4fdd\u7559\u65e7\u7248\u672c\u4e8c\u8fdb\u5236\u76ee\u5f55\uff0c\u5fc5\u8981\u65f6\u5207\u6362\u8f6f\u94fe\u5e76\u6062\u590d\u5907\u4efd\n# \/usr\/lib\/postgresql\/16\/bin \u4fdd\u7559\u526f\u672c\uff0c\u56de\u6eda\u65f6\u66ff\u6362\u5e76\u91cd\u542f<\/code><\/pre>\n<\/div>\n<\/details>\n<h3 class=\"doc-h3\">3.3 \u7b2c\u4e09\u9636\u6bb5\uff1a\u7eb5\u6df1\u52a0\u56fa\uff08\u5468\u7ea7\uff09<\/h3>\n<p class=\"doc-p\">\u5347\u7ea7\u89e3\u51b3\u7684\u662f\u5df2\u77e5\u6f0f\u6d1e\uff0c\u4f46 PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u66b4\u9732\u51fa\u7684\u201cDDL \u5373\u653b\u51fb\u9762\u201d\u95ee\u9898\u9700\u8981\u957f\u671f\u6cbb\u7406\u3002\u5efa\u8bae\u4ece\u4ee5\u4e0b\u4e09\u4e2a\u7ef4\u5ea6\u5efa\u7acb\u5e38\u6001\u9632\u7ebf\uff1a<\/p>\n<ul class=\"doc-list\">\n<li><strong>DDL \u5ba1\u8ba1\u95ed\u73af\uff1a<\/strong>\u901a\u8fc7 pgaudit \u6269\u5c55\u8bb0\u5f55\u6240\u6709 ALTER\u3001CREATE\u3001DROP \u8bed\u53e5\uff0c\u5e76\u5bf9\u201cADD COLUMN \u540e\u7d27\u8ddf ROLLBACK\u201d\u8fd9\u7c7b\u53ef\u7591\u5e8f\u5217\u8bbe\u7f6e\u544a\u8b66\u89c4\u5219\u3002<\/li>\n<li><strong>\u6700\u5c0f\u6743\u9650\u91cd\u6784\uff1a<\/strong>\u5c06\u4e1a\u52a1\u8d26\u53f7\u4e0e DDL \u8d26\u53f7\u5f7b\u5e95\u5206\u79bb\uff0c\u4e1a\u52a1\u8d26\u53f7\u4ec5\u4fdd\u7559 DML \u6743\u9650\uff0c\u6240\u6709\u7ed3\u6784\u53d8\u66f4\u8d70\u53d7\u63a7\u7684\u53d8\u66f4\u5e73\u53f0\u3002<\/li>\n<li><strong>OS \u5c42\u9694\u79bb\uff1a<\/strong>\u4ee5\u72ec\u7acb\u4f4e\u6743\u9650\u7cfb\u7edf\u7528\u6237\u8fd0\u884c postgres \u8fdb\u7a0b\uff0c\u914d\u5408 systemd \u7684 <code>NoNewPrivileges=yes<\/code>\u3001<code>ProtectSystem=strict<\/code> \u4e0e seccomp \u8fc7\u6ee4\uff0c\u964d\u4f4e RCE \u6210\u529f\u540e\u7684\u6a2a\u5411\u79fb\u52a8\u80fd\u529b\u3002<\/li>\n<\/ul>\n<div class=\"baota-config-bar\"><span>NoNewPrivileges=yes<\/span><span class=\"lang-tag\">SYSTEMD<\/span><\/div>\n<div class=\"baota-config-bar\"><span>ProtectSystem=strict<\/span><span class=\"lang-tag\">SYSTEMD<\/span><\/div>\n<div class=\"baota-config-bar\"><span>pgaudit.log = &#8216;ddl, role&#8217;<\/span><span class=\"lang-tag\">CONF<\/span><\/div>\n<h2 class=\"doc-h2\">\u56db\u3001\u67b6\u6784\u53cd\u601d\uff1a\u4ece PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u770b\u6570\u636e\u5e93\u5b89\u5168\u8fb9\u754c<\/h2>\n<p class=\"doc-p\">\u8fd9\u8d77 PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u7ed9\u6240\u6709\u6570\u636e\u5e73\u53f0\u67b6\u6784\u5e08\u4e0a\u4e86\u4e00\u5802\u6602\u8d35\u7684\u8bfe\uff1a\u6570\u636e\u5e93\u7684\u6743\u9650\u6a21\u578b\u5047\u8bbe\u201cDDL \u6743\u9650\u662f\u53ef\u4fe1\u7684\u201d\uff0c\u4f46\u73b0\u4ee3\u591a\u79df\u6237 SaaS\u3001\u4f4e\u4ee3\u7801\u5e73\u53f0\u4e0e\u5728\u7ebf\u5efa\u8868\u80fd\u529b\u6b63\u5728\u628a DDL \u6743\u9650\u4e0b\u653e\u7ed9\u8d8a\u6765\u8d8a\u591a\u7684\u975e\u53ef\u4fe1\u4e3b\u4f53\u3002\u5f53\u201c\u521b\u5efa\u5bf9\u8c61\u201d\u4e0d\u518d\u7b49\u4e8e\u201c\u53ef\u4fe1\u7ba1\u7406\u5458\u201d\uff0c\u7c7b\u578b\u7cfb\u7edf\u7684\u4e00\u81f4\u6027\u5951\u7ea6\u5c31\u5fc5\u987b\u4ece\u201c\u5047\u8bbe\u53ef\u4fe1\u201d\u5347\u7ea7\u4e3a\u201c\u96f6\u4fe1\u4efb\u6821\u9a8c\u201d\u3002<\/p>\n<p class=\"doc-p\">\u77ed\u671f\u770b\uff0c\u5347\u7ea7\u5230 18.7 \/ 17.12 \/ 16.16 \/ 15.20 \/ 14.25 \u662f\u552f\u4e00\u5f7b\u5e95\u7684\u4fee\u590d\u624b\u6bb5\uff1b\u4e2d\u671f\u770b\uff0c\u5e94\u628a DDL \u5ba1\u8ba1\u3001\u6743\u9650\u5206\u79bb\u4e0e OS \u5c42\u6c99\u7bb1\u7eb3\u5165\u6570\u636e\u5e93\u5b89\u5168\u57fa\u7ebf\uff1b\u957f\u671f\u770b\uff0c\u4efb\u4f55\u5c06 DDL \u80fd\u529b\u66b4\u9732\u7ed9\u4e1a\u52a1\u4fa7\u7684\u5e73\u53f0\u8bbe\u8ba1\uff0c\u90fd\u5e94\u5728\u67b6\u6784\u8bc4\u5ba1\u9636\u6bb5\u91cd\u65b0\u8bc4\u4f30\u5176\u653b\u51fb\u9762\u3002\u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u4e0d\u4f1a\u662f\u4e2a\u4f8b\uff0c\u5b83\u53ea\u662f\u7c7b\u578b\u7cfb\u7edf\u590d\u6742\u6027\u5728\u5b89\u5168\u7ef4\u5ea6\u7684\u4e00\u6b21\u96c6\u4e2d\u5151\u73b0\u3002<\/p>\n<div class=\"doc-callout doc-callout-related\">\n<div class=\"doc-callout-title\">\ud83d\udd17 \u5ef6\u4f38\u9605\u8bfb\u4e0e\u4e13\u680f\u63a8\u8350<\/div>\n<ul class=\"doc-internal-links\">\n<li><strong>\u6240\u5c5e\u4e13\u680f\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/category\/security\/\">\u6d4f\u89c8\u66f4\u591a\u3010\u5b89\u5168\u6f0f\u6d1e\u3011\u6280\u672f\u67b6\u6784\u4e0e\u5de5\u7a0b\u5b9e\u6218\u6587\u7ae0<\/a><\/li>\n<li><strong>\u63a8\u8350\u6df1\u5ea6\u9605\u8bfb\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/2026\/11\/12\/pulsemate-security-e8c78ae15bcff261492b6d493d220a541900e7ee96ec02a5c0db270cc5d6d4af\/\">Node.js HTTP\/2 \u5185\u5b58\u6cc4\u6f0f\u9ad8\u5371\u6f0f\u6d1e\u6df1\u5ea6\u590d\u76d8\uff1aCVE-2026-123865 \u7684 GOAWAY \u7ade\u6001\u4e0e\u60ac\u6302\u4f1a\u8bdd\u6839\u56e0\u62c6\u89e3<\/a><\/li>\n<li><strong>\u63a8\u8350\u6df1\u5ea6\u9605\u8bfb\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/2026\/11\/12\/pulsemate-security-1c1b4187abfa8f671e82df78175a10b1f5b538fd3f7a2ae823ce6caa5e2f4d3f\/\">\u5fae\u8f6f\u5341\u6708\u5b89\u5168\u66f4\u65b0\u6df1\u5ea6\u590d\u76d8\uff1a1400+\u6f0f\u6d1e\u4e2d1\u4e2a\u5df2\u906d\u5229\u7528\uff0c\u67b6\u6784\u5e08\u89c6\u89d2\u7684\u5e94\u6025\u54cd\u5e94\u4e0e\u8865\u4e01\u6cbb\u7406SOP<\/a><\/li>\n<li><strong>\u5168\u7ad9\u6280\u672f\u5f52\u6863\uff1a<\/strong><a href=\"https:\/\/btc354.com\/\">\u8fd4\u56de \u4e2a\u4eba\u5b66\u4e60\u7ad9\u70b9 \u9996\u9875\u63a2\u7d22\u66f4\u591a\u6280\u672f\u524d\u6cbf<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"doc-ref-box\">\n  <strong>\u539f\u6587\u51fa\u5904\u4e0e\u6743\u5a01\u6eaf\u6e90\u58f0\u660e\uff1a<\/strong><br \/>\n  \u672c\u6587\u6838\u5fc3\u6280\u672f\u80cc\u666f\u6e90\u81ea GitHub Advisory Database \u4e0e PostgreSQL \u5b98\u65b9\u5b89\u5168\u516c\u544a\uff1a<br \/>\n  <a href=\"https:\/\/github.com\/advisories\/GHSA-7m3p-q8w8-4qgh\" target=\"_blank\" rel=\"noopener noreferrer\">GHSA-7m3p-q8w8-4qgh (GitHub Advisory Database)<\/a><br \/>\n  <a href=\"https:\/\/www.postgresql.org\/support\/security\/CVE-2026-6460\" target=\"_blank\" rel=\"noopener noreferrer\">PostgreSQL \u5b98\u65b9\u5b89\u5168\u516c\u544a CVE-2026-6460<\/a><br \/>\n  <a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-6460\" target=\"_blank\" rel=\"noopener noreferrer\">NVD CVE-2026-6460 \u8be6\u60c5<\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5ea6\u5256\u6790 PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e CVE-2026-6460\uff1aCVSS 8.8 \u9ad8\u5371\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7 ALTER SET DATA TYPE \u7b49 DDL \u8def\u5f84\u4ee5\u6570\u636e\u5e93\u8fdb\u7a0b\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u672c\u6587\u4ece\u7c7b\u578b\u7cfb\u7edf\u8ffd\u8e2a\u7f3a\u9677\u3001\u6570\u636e\u5b57\u5178\u810f\u503c\u6b8b\u7559\u3001PL\/pgSQL \u53d8\u91cf\u6c61\u67d3\u4e09\u5c42\u6839\u56e0\u62c6\u89e3\uff0c\u7ed9\u51fa\u5347\u7ea7\u77e9\u9635\u3001\u4e34\u65f6\u7f13\u89e3\u4e0e\u751f\u4ea7\u5e94\u6025\u54cd\u5e94\u843d\u5730\u65b9\u6848\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[424],"tags":[517,86,275,519,518],"class_list":["post-984","post","type-post","status-publish","format-standard","hentry","category-security","tag-cve-2026-6460","tag-postgresql","tag-275","tag-519","tag-518"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PostgreSQL \u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\u6df1\u5ea6\u5e94\u6025\u54cd\u5e94\uff1aCVE-2026-6460 \u4ece DDL \u653b\u51fb\u9762\u5230\u4efb\u610f\u4ee3\u7801\u6267\u884c\u7684\u67b6\u6784\u7ea7\u6839\u56e0\u62c6\u89e3 - 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