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7.5 High

CVE-2026-6479 Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL…

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 products and versions

Product Affected versions Fixed in
postgresql 18 18 → < 18.4 18.4
postgresql 17 17 → < 17.10 17.10
postgresql 16 16 → < 16.14 16.14
postgresql 15 15 → < 15.18 15.18
postgresql 14.23 earliest → < 14.23 14.23

References

Timeline

  1. Published
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