CVE-2026-6664

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/9/2026

Last Modified5/9/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-190

References

https://www.pgbouncer.org/changelog.html#pgbouncer-125x(f86ef6dc-4d3a-42ad-8f28-e6d5547a5007)

IOC Correlations

No correlations recorded

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