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    "cveMetadata": {
        "cveId": "CVE-2026-111438",
        "assignerOrgId": "a1a479f7-907b-4ae8-a999-9148cadc9224",
        "state": "PUBLISHED",
        "assignerShortName": "openGauss",
        "dateReserved": "2026-10-16T03:04:53.420Z",
        "datePublished": "2026-10-19T08:08:03.265Z",
        "dateUpdated": "2026-10-19T17:22:23.532Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "a1a479f7-907b-4ae8-a999-9148cadc9224",
                "shortName": "openGauss",
                "dateUpdated": "2026-10-19T08:08:03.265Z"
            },
            "title": "check_hba_replication 认证与访问控制绕过",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-288",
                            "description": "CWE-288 Authentication bypass using an alternate path or channel",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-115",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-115 Authentication Bypass"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "openGauss-server",
                    "product": "openGauss-server",
                    "platforms": [
                        "openEuler",
                        "Centos"
                    ],
                    "collectionURL": "https://opengauss.org/zh/download/archive/?version=7.0.0%20(LTS)",
                    "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"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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。",
                    "supportingMedia": [
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                            "value": "<div><table><tbody><tr><td>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。<br><br>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。</td></tr></tbody></table></div>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://gitcode.com/opengauss/openGauss-server/pull/9757"
                }
            ],
            "metrics": [
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                    "format": "CVSS",
                    "scenarios": [
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                            "lang": "en",
                            "value": "GENERAL"
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                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "HIGH",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "NONE",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 6.5,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N"
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            "source": {
                "discovery": "EXTERNAL"
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-19T17:22:00.742739Z",
                                "id": "CVE-2026-111438",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                                        "Automatable": "no"
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                                "role": "CISA Coordinator",
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                "title": "CISA ADP Vulnrichment",
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                    "dateUpdated": "2026-10-19T17:22:23.532Z"
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