CVE-2026-6664

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CVSS 3.1

7.5 high

EPSS

<1%p51

Published

May 9, 2026 (May 9, 2026)

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.

Vendors: pgbouncer
Products: pgbouncer
Weakness: CWE-190
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.7%)

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