CVE-2026-6667

Name	CVE-2026-6667
Description	PgBouncer before 1.25.2 did not perform an appropriate authorization check for the KILL_CLIENT admin command. All users with access to the administration console (which itself requires authorization) could run this command. It would have been correct to allow only users listed in the admin_users parameter.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1136075

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pgbouncer (PTS)	bullseye	1.15.0-1	vulnerable
	bullseye (security)	1.15.0-1+deb11u2	vulnerable
	bookworm	1.18.0-1+deb12u1	vulnerable
	trixie	1.24.1-1+deb13u1	vulnerable
	forky, sid	1.25.1-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
pgbouncer	source	(unstable)	(unfixed)			1136075

Fixed by: https://github.com/pgbouncer/pgbouncer/commit/97b5634be55d167a602b0bc0f09a8675997248a6 (pgbouncer_1_25_2)