SecuriTricks - 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.

Product(s) Impacted

Vendor	Product	Versions
Pgbouncer	Pgbouncer	<1.25.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-862

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	pgbouncer	pgbouncer	<1.25.2	/	/	/	/	/	/	/

References

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

CVSS Score

4.3 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: LOW

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

View Vector String

Timeline

Published: May 9, 2026, 1:16 a.m.
Last Modified: May 9, 2026, 1:16 a.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

CVE-2026-6667