CVE-2026-6669: Unbounded SCRAM iteration count causes CPU exhaustion in PgBouncer

Overview

Severity

Medium (CVSS 5.9)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-10-01

EPSS Score

0.31% (percentile: 21.9%)

Affected Products (1)

Other

• 21934-17084

Revision History

• 2026-10-01: Information published.