CVE-2025-59432

SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication mechanisms. Prior to version 3.2, a timing attack vulnerability exists in the SCRAM Java implementation. The issue arises because Arrays.equals was used to compare secret values such as client proofs and server signatures. Since Arrays.equals performs a short-circuit comparison, the execution time varies depending on how many leading bytes match. This behavior could allow an attacker to perform a timing side-channel attack and potentially infer sensitive authentication material. All users relying on SCRAM authentication are impacted. This vulnerability has been patched in version 3.1 by replacing Arrays.equals with MessageDigest.isEqual, which ensures constant-time comparison.

CVSS

No CVSS.

References

Link	Resource
https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/security/MessageDigest.html#isEqual(byte%5B%5D,byte%5B%5D)
https://github.com/ongres/scram/commit/f04975680d4a67bc84cc6c61bbffd5186223e2e2
https://github.com/ongres/scram/security/advisories/GHSA-3wfh-36rx-9537

Configurations

No configuration.

History

22 Sep 2025, 20:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-09-22 20:15

Updated : 2025-09-22 21:22

NVD link : CVE-2025-59432

Mitre link : CVE-2025-59432

CVE.ORG link : CVE-2025-59432

JSON object : View

Products Affected

No product.

CWE

CWE-208

Observable Timing Discrepancy

CWE-385

Covert Timing Channel

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