CVE-2026-6479

Published: May 14, 2026Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 (Secondary)

Description

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.

Affected (5)

Products: Postgresql: Postgresql

Postgresql

1 product

Postgresql

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Postgresql Postgresql	Before 14.23
Postgresql Postgresql	From 15.0 to 15.18
Postgresql Postgresql	From 16.0 to 16.14
Postgresql Postgresql	From 17.0 to 17.10
Postgresql Postgresql	From 18.0 to 18.4

Related CWEs

CWE-674

Uncontrolled Recursion

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

References (1)

https://www.postgresql.org/support/security/CVE-2026-6479/

Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

PatchVendor Advisory

Timeline

No history available yet.