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Vulnerabilities CVE-2026-6479

CVE-2026-6479

High
Open
TLP:CLEAR

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

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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.

Details

CVSS Score
7.5
EPSS Score
0.47%

38.4th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Confidence
90%
Published
May 14, 2026
Last Modified
May 14, 2026
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