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CVE

CVE-2026-6665

CVE-2026-6665 pgbouncer
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CVE

CVE-2026-6665

CVE-2026-6665 pgbouncer

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.1
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-
C
H
U
-

Related Resources

No items found.

References

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-6665

Severity

9.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.8
EPSS Probability
0.00015%
EPSS Percentile
0.03021%
Introduced Version
0
Fix Available

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