CVE-2025-59432 — scram-common
Fix: ongres/scram@e0b0cf9CVE-2025-59432 is a CWE-208 vulnerability in com.ongres.scram:scram-common. A fix is available for com.ongres.scram:scram-common — see the affected versions and patch details below.
Timing Attack Vulnerability in SCRAM Authentication
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2025-59432.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Real-World Exposure
com.ongres.scram:scram-commonReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
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
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | com.ongres.scram:scram-common | all versions | 3.2com.ongres.scram:scram-common:3.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.ongres.scram:scram-common, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update com.ongres.scram:scram-common to 3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-59432 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-59432 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2025-59432. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat build of Quarkus 3.20.5 | common | RHSA-2026:1899 |
| Red Hat build of Quarkus 3.27.2 | common | RHSA-2026:1965 |
Frequently Asked Questions
Is CVE-2025-59432 in your dependencies?
O3 Security finds CVE-2025-59432 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.