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PostgreSQL SSL/GSS init causes denial of service, via uncontrolled recursion

PostgreSQL · CVE-2026-6479
0 news outlets0 CERTs and agencies0 researchers

What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
7.5
EPSS
0.6%
First seen
1 d ago
Status
corroborated

All PostgreSQL vulnerabilities