PgBouncer missing authorization check in KILL_CLIENT admin command
CVE-2026-6667 is fixed in pgbouncer on 1 platform, first by DEBIAN-CVE-2026-6667, released May 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| pgbouncer · Debian 13.5 (trixie) | 1.24.1-1+deb13u2 | DEBIAN-CVE-2026-6667 | May 27, 2026 |
| pgbouncer · Debian 14 | 1.25.2-1 | DEBIAN-CVE-2026-6667 | May 27, 2026 |
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