Information disclosure in PostgreSQL - CVE-2026-116327
Published: November 12, 2026
Vulnerability identifier: #VU166110
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-116327
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to infer sensitive values hidden by a security_barrier view.
The vulnerability exists due to incomplete protection of indirectly referenced column values in PostgreSQL security_barrier processing when analyzing expressions. A remote user can apply a leaky function to a CASE test value or internal parameter that indirectly represents a protected column to infer values hidden by the view.
Affected software
PostgreSQL
How to mitigate CVE-2026-116327
Install security update from vendor's website.
PostgreSQL - addressed in versions 14.25, 15.20, 16.16, 17.12, 18.7