{"schema":"threatline.record/2","record":{"id":"CVE-2026-111438","aliases":[],"summary":"check_hba_replication 认证与访问控制绕过","details":"在 openGauss-server 的 src/common/backend/libpq/hba.cpp 中，复制连接认证存在访问控制绕过。hba_getauthmethod() 在处理 HADR/SW 复制发送方时，不要求 is_node_internal_connection()，直接调用 check_hba_replication()。check_hba_replication() 仅按 replication 标记做弱匹配，缺少普通 check_hba() 中的远程 trust 禁止等完整校验。因此，非内部网络的 HADR/SW 复制连接可绕过内部连接限制和完整 pg_hba 策略完成认证，进而通过复制协议读取备份与日志数据。\n\n此问题随 HADR 复制发送方绕过内部连接校验进入代码，自 3.0.0 起即存在。受影响版本包括 3.0.x、3.1.x、5.0.x、5.1.0、6.0.x，以及 7.0.0-RC1、7.0.0-RC2、7.0.0-RC3。该问题已在 7.0.0-LTS版本修复，通过要求 HADR/SW 复制发送方必须经过 is_node_internal_connection 校验，使外部复制连接改走普通 check_hba() 并触发禁止远程 trust 策略。修复pr见https://gitcode.com/opengauss/openGauss-server/pull/9757。","categories":["Unclassified"],"product":"openGauss-server","vendor":"openGauss-server","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111438","source_modified_at":"2026-10-19T17:22:23.532Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"openGauss-server","vendor":"openGauss-server","versions":[{"status":"unaffected","version":"7.0.0-LTS"},{"status":"affected","version":"3.0.0-3.0.5"},{"status":"affected","version":"3.1.0-3.1.1"},{"status":"affected","version":"5.0.0-RC1"},{"status":"affected","version":"5.0.0-5.0.3"},{"status":"affected","version":"6.0.0-RC1"},{"status":"affected","version":"6.0.0-6.0.6"},{"status":"affected","version":"7.0.0-RC1, 7.0.0-RC2, 7.0.0-RC3"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00361,"percentile":0.28702,"score_date":"2026-10-23"},"published_at":"2026-10-19T08:08:03.265Z","modified_at":"2026-10-19T17:22:23.532Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111438","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T17:22:23.532Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111438","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://gitcode.com/opengauss/openGauss-server/pull/9757"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-19T17:22:00.742739Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-19T17:22:23.532Z","content_hash":"59cf08281534970b30a26dfceabe68d10fc468ba4d0c121943cb94558462a526"}}