CVE-2026-6479 Affecting postgresql:12/postgresql package, versions <0:12.22-9.module_el8.10.0+4249+5ffd6db7


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.47% (37th percentile)

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  • Snyk IDSNYK-ALMALINUX8-POSTGRESQL-18748422
  • published13 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

NewCVE-2026-6479  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 postgresql:12/postgresql to version 0:12.22-9.module_el8.10.0+4249+5ffd6db7 or higher.
This issue was patched in ALSA-2026:52396.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql:12/postgresql package and not the postgresql:12/postgresql package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL AF_UNIX socket to achieve sustained denial of service. If SSL and GSS are both disabled, an attacker can do the same via access to a PostgreSQL TCP socket. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

CVSS Base Scores

version 3.1