Skip to main content
VulnerabilityPublished

CVE-2026-111439: openGauss-server · Missing Authorization

Affects openGauss-serverSource CVE Database V5

0

Not known to be exploited · CVSS 4.3 Medium.

Data as of 26 Oct 2026, 11:42 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-10-19.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
openGauss-serveropenGauss-serverAffected
  • 3.0.0-3.0.5 – 6.0.0-RC1
7 affected builds
Fixed in–

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。

References

Community reviews

Loading reviews…