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CVE-2026-116327

PostgreSQL security_barrier analysis can expose hidden values through indirect expressions

Severity
Medium 4.3
Published
12 Nov 2026
Last changed
12 Nov 2026
Added to UpHeron
13 Nov 2026
Fixed in
14.25, 15.20, 16.16, 17.12, 18.7
Exploit chance
0.2% in the next 30 daysHigher than 13% of CVEs. EPSS by FIRST, 13 Nov 2026
Weakness
Missing authorization (CWE-862)
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Read some data
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Sources
CVE Program

Description

Exposure of sensitive information in PostgreSQL security_barrier processing allows a database user to infer values hidden by a security_barrier view, via applying a leaky function to a CASE test value or internal parameter that indirectly represents a protected column. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

From the CVE Program.

Affected software

SoftwareAffected versions
PostgreSQLServers and applications · cna:n/a|postgresql
  • Every version before 14.25
  • From 15 before 15.20
  • From 16 before 16.16
  • From 17 before 17.12
  • From 18 before 18.7

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-116327