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CVE-2026-6665

nvd nist
Published: May 9, 2026Modified: May 14, 2026

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9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

Description

The SCRAM code in PgBouncer before 1.25.2 did not check the return value of strlcat() correctly when building the contents of the SCRAM client-final-message. A malicious backend that sends a SCRAM server-final-message with a long nonce can trigger a stack overflow.

Affected (1)

Products: Pgbouncer: Pgbouncer
Pgbouncer
1 product
Pgbouncer
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Pgbouncer
Before 1.25.2

Related CWEs

CWE-121
Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

References (1)

Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
Release Notes

Timeline

No history available yet.