CVE-2026-6666

PgBouncer crash in kill_pool_logins_server_error

CVSS 5.9 MEDIUMEPSS 0.4%CWE-476

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.9EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

09 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Want to know if your infrastructure is exposed to this?

References