CVE-2026-111438Medium· 6.5▾ Sunlit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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 19.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.4%
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。
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。
openGauss-server 3.0.0-3.0.5openGauss-server 3.1.0-3.1.1openGauss-server 5.0.0-RC1openGauss-server 5.0.0-5.0.3openGauss-server 6.0.0-RC1openGauss-server 6.0.0-6.0.6openGauss-server 7.0.0-RC1, 7.0.0-RC2, 7.0.0-RC3Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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