GHSA-3wfh-36rx-9537 Timing Attack Vulnerability in SCRAM Authentication

• Maven com.ongres.scram:scram-common: < 3.2 → fixed in 3.2

Impact 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. Patches This vulnerability has been patched by replacing `Arrays.equals` with `MessageDigest.isEqual`, which ensures constant-time comparison. Users should upgrade to version 3.2 or later to mitigate this issue. Workarounds Because the attack requires high precision and repeated attempts, the risk is limited, but the only reliable mitigation is to upgrade to a patched release (version 3.2 or later). References • Java `MessageDigest.isEqual` Documentation)