UNIX Symbolic Link (Symlink) Following Affecting libpq package, versions [14.2,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-LIBPQ-16691372
- published14 May 2026
- disclosed14 May 2026
- creditValery Gubanov, Zhanpeng Liu
Introduced: 14 May 2026
NewCVE-2026-6475 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to UNIX Symbolic Link (Symlink) Following via the pg_basebackup or pg_rewind process. An attacker can overwrite arbitrary files on the local system by leveraging symlink following, potentially hijacking the operating system account. This is only exploitable if relevant actions, such as moving or snapshotting the virtual machine, are performed between running these commands and starting the server.