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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| Link | Providers |
|---|---|
| https://gitcode.com/opengauss/openGauss-server/pull/9374 |
|
Mon, 19 Oct 2026 08:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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。 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。 | |
| 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 | |
| Weaknesses | CWE-862 | |
| References |
| |
| Metrics |
cvssV3_1
|
Subscriptions
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Status: PUBLISHED
Assigner: openGauss
Published:
Updated: 2026-10-19T07:59:44.700Z
Reserved: 2026-10-16T03:04:55.778Z
Link: CVE-2026-111439
No data.
Status : Received
Published: 2026-10-19T08:17:02.130
Modified: 2026-10-19T08:17:02.130
Link: CVE-2026-111439
No data.
OpenCVE Enrichment
No data.
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CWE-862
Missing Authorization