Information Exposure in PostgreSQL Security Barrier Processing
CVE-2026-116327

4.3MEDIUM

Key Information:

Vendor

PostgreSQL Global Development Group

Status
Postgresql
Vendor
CVE Published:
12 November 2026

What is CVE-2026-116327?

A vulnerability exists in the security barrier processing of PostgreSQL, allowing a database user to infer values concealed by a security barrier view. This occurs through the application of a leaking function on a CASE test value or an internal parameter, which may indirectly reference a secured column. Users of the affected PostgreSQL versions risk unauthorized access to sensitive information that should remain protected. To mitigate this risk, it is essential to upgrade to the patched versions.

Affected Version(s)

PostgreSQL 18 < 18.7

PostgreSQL 17 < 17.12

PostgreSQL 16 < 16.16

References

https://www.postgresql.org/support/security/CVE-2026-116327/

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

The PostgreSQL project thanks Only see myself for reporting this problem.
.