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    "cveMetadata": {
        "cveId": "CVE-2026-111439",
        "assignerOrgId": "a1a479f7-907b-4ae8-a999-9148cadc9224",
        "state": "PUBLISHED",
        "assignerShortName": "openGauss",
        "dateReserved": "2026-10-16T03:04:55.778Z",
        "datePublished": "2026-10-19T07:59:44.700Z",
        "dateUpdated": "2026-10-19T17:25:07.334Z"
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                "shortName": "openGauss",
                "dateUpdated": "2026-10-19T07:59:44.700Z"
            },
            "title": "pg_read_binary_file_blocks 缺少初始用户权限校验，普通用户可读取 relation 文件块",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-862",
                            "description": "CWE-862 Missing Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-1",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
                        }
                    ]
                }
            ],
            "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"
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                        {
                            "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": "5.1.0"
                        },
                        {
                            "status": "affected",
                            "version": "6.0.0-RC1"
                        },
                        {
                            "status": "affected",
                            "version": "6.0.0-6.0.6"
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                            "version": "7.0.0-RC1, 7.0.0-RC2, 7.0.0-RC3"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
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                {
                    "lang": "en",
                    "value": "在 openGauss-server的 src/common/backend/utils/adt/genfile.cpp 模块中，内置函数 pg_read_binary_file_blocks() 存在权限校验逻辑缺陷。该函数在入口处仅校验了起始块号（startBlockNum）和块数量（blockCount）的范围，随后直接调用底层文件读取例程 ReadBinaryFileBlocksFirstCall()。该底层例程仅执行了路径规范化检查以及针对 .. 路径遍历和数据目录边界的基本检查，缺失了对调用者数据库权限（如 SELECT 权限）的校验。此外，辅助函数 is_row_data_file() 也仅用于识别文件形态，未包含权限检查。因此，任何拥有普通数据库连接权限的用户，只要能够通过 pg_relation_filepath() 等函数获取到目标表的底层关系文件路径（例如压缩数据的 _compress 文件路径），即可无需具备该表的 SELECT 权限，直接读取表数据的二进制块。\n此漏洞影响此前3.0.0到6.0.0间的所有版本及补丁版，并在7.0.0-LTS版本修复。修复patch详见：https://gitcode.com/opengauss/openGauss-server/pull/9374。",
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                            "value": "在 openGauss-server的 src/common/backend/utils/adt/genfile.cpp 模块中，内置函数 pg_read_binary_file_blocks() 存在权限校验逻辑缺陷。该函数在入口处仅校验了起始块号（startBlockNum）和块数量（blockCount）的范围，随后直接调用底层文件读取例程 ReadBinaryFileBlocksFirstCall()。该底层例程仅执行了路径规范化检查以及针对 .. 路径遍历和数据目录边界的基本检查，缺失了对调用者数据库权限（如 SELECT 权限）的校验。此外，辅助函数 is_row_data_file() 也仅用于识别文件形态，未包含权限检查。因此，任何拥有普通数据库连接权限的用户，只要能够通过 pg_relation_filepath() 等函数获取到目标表的底层关系文件路径（例如压缩数据的 _compress 文件路径），即可无需具备该表的 SELECT 权限，直接读取表数据的二进制块。<br>此漏洞影响此前3.0.0到6.0.0间的所有版本及补丁版，并在7.0.0-LTS版本修复。修复patch详见：https://gitcode.com/opengauss/openGauss-server/pull/9374。"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://gitcode.com/opengauss/openGauss-server/pull/9374"
                }
            ],
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                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "NONE",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 4.3,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
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            "source": {
                "discovery": "EXTERNAL"
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                "metrics": [
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                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-19T17:24:53.483125Z",
                                "id": "CVE-2026-111439",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
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                                        "Automatable": "no"
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                                        "Technical Impact": "partial"
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                                "role": "CISA Coordinator",
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                "title": "CISA ADP Vulnrichment",
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