CVE-2026-6667
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability—
ProductPgbouncer
PublishedMay 9, 2026
First seenMay 9, 2026
Weakness typeCWE-862Missing authorization
How to fix
Update
- pgbouncer pgbouncer1.25.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pgbouncer pgbouncer | v < 1.25.2 | 1.25.2 |
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