CVE-2026-6664

HighCVSS 7.5/10Last modified Jul 24, 2026

Description

An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-190

Affected software

No affected versions have been published.

Timeline

Published
May 9, 2026
Last modified
Jul 24, 2026
NVD status
Analyzed

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CVE-2026-6664: High severity, CVSS 7.5 | Vulnix