SB2026081006 - Red Hat Enterprise Linux 8 update for the postgresql:12 module

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Main Vulnerability Database SB2026081006

SB2026081006 - Red Hat Enterprise Linux 8 update for the postgresql:12 module

Published: August 10, 2026

Security Bulletin ID SB2026081006
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Uncontrolled Recursion (CVE-ID: CVE-2026-6479)

CWE-ID: CWE-674 - Uncontrolled Recursion

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled recursion in SSL and GSS negotiation when initializing connections. A remote attacker can connect to a vulnerable socket to cause a denial of service.

If SSL and GSS are both disabled, exploitation is possible via access to a PostgreSQL TCP socket. Otherwise, the attacker must be able to connect to a PostgreSQL AF_UNIX socket.


Remediation

Install update from vendor's website.

References