CVE-2026-6666

PgBouncer crash in kill_pool_logins_server_error

Published May 9, 2026 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Pgbouncer
Pgbouncer pgbouncer
Vendors & Products Pgbouncer
Pgbouncer pgbouncer
Type Values Removed Values Added
Description A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.
Title PgBouncer crash in kill_pool_logins_server_error
Weaknesses CWE-476
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
PostgreSQL
Published
Updated
May 11, 2026, 2:44 PM
Reserved
Apr 20, 2026, 12:25 PM
Status
Analyzed
Published
May 9, 2026, 1:16 AM
Modified
Jul 24, 2026, 8:10 AM