Unsafe Dependency Resolution Affecting postgresql package, versions [14.0,14.24)[15.0,15.19)[16.0,16.15)[17.0,17.11)[18.0,18.5)
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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- published29 Aug 2026
- disclosed13 Aug 2026
- creditUnknown
Introduced: 13 Aug 2026
NewCVE-2026-18408 (opens in a new tab)How to fix?
Upgrade postgresql to version 14.24, 15.19, 16.15, 17.11, 18.5 or higher.
Overview
Affected versions of this package are vulnerable to Unsafe Dependency Resolution via the \unrestrict meta-command input expansion in the restore process. An attacker can execute arbitrary code as the client operating system account by injecting malicious input from a compromised origin server during the restoration of a database dump using psql. This is only exploitable if the attacker has superuser privileges on the origin server and the dump is restored using methods that involve psql.
Workaround
This vulnerability can be mitigated by using "pg_restore --dbname" instead of restore methods that involve "psql".