CVE-2026-6479
PostgreSQL SSL/GSS init causes denial of service, via uncontrolled recursion
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
Novell Inc.
commercial·US
Сообщество свободного программного обеспечения
oss-projectaka fsf
АО «ИВК»
commercial·RUaka ivk
Microsoft Corp
commercial·USaka microsoft corporation
Postgres Professional
commercialaka postgres pro enterprise, postgres pro certified
PostgreSQL Global Development Group
oss-project·USaka postgresql
and 6 more affected products View all →
Exploitability
Official Patch Available
Workaround Available
Attack Graph
Products CVE Techniques Tactics
Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.
MITRE ATT&CK
1 technique Impact
References
https://www.postgresql.org/support/security/CVE-2026-6479/
postgresql.org
https://www.postgresql.org/support/security/CVE-2026-6479/
postgresql.org
https://www.postgresql.org/about/news/postgresql-184-1710-1614-1518-and-1423-released-3297/
postgresql.org
and 9 more references View all →
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