CVE-2026-6666 MEDIUM

CVE-2026-6666: PgBouncer crash in kill_pool_logins_server_error

Vendor N/A
Product PgBouncer
Weakness CWE-476
Published May 9, 2026
Last update May 11, 2026
View on NVD All CVEs

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 9, 2026 CVE published
May 11, 2026 Record updated