CVE-2026-6667

4.3 mediumEPSS 0.3%

Medium (4.3) in pgbouncer pgbouncer. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.3 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
CWE: CWE-862
Published: 2026-05-09
Modified: 2026-07-24
Record from: the NVD, synced 2026-10-19

Affected

pgbouncer:pgbouncer

References

https://www.pgbouncer.org/changelog.html#pgbouncer-125x

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