CVE-2026-6664

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.pgbouncer.org/changelog.html#pgbouncer-125x	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-09 01:16

Updated : 2026-07-24 08:10

NVD link : CVE-2026-6664

Mitre link : CVE-2026-6664

CVE.ORG link : CVE-2026-6664

JSON object : View

Products Affected

pgbouncer

pgbouncer

CWE

CWE-190

Integer Overflow or Wraparound

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