Wildfly-elytron possibly vulnerable to timing attacks via use of unsafe comparatorGHSA-jmj6-p2j9-68cp
HIGHGHSA-jmj6-p2j9-68cp is a high-severity (CVSS 7.4) CWE-203 vulnerability in org.wildfly.security:wildfly-elytron. A fix is available for org.wildfly.security:wildfly-elytron — see the affected versions and patch details below.
Exploitation Status
No confirmed exploitation observed yet
- A successful exploit gives an attacker total control of the affected component, not partial access.
- 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 GHSA-jmj6-p2j9-68cp.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
org.wildfly.security:wildfly-elytron☕org.wildfly.security:wildfly-elytronReal-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
wildfly-elytron: possible timing attacks via use of unsafe comparator. A flaw was found in Wildfly-elytron. Wildfly-elytron uses java.util.Arrays.equals in several places, which is unsafe and vulnerable to timing attacks. To compare values securely, use java.security.MessageDigest.isEqual instead. This flaw allows an attacker to access secure information or impersonate an authed user.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.wildfly.security:wildfly-elytron | all versions | 1.15.15.Finalorg.wildfly.security:wildfly-elytron:1.15.15.Final |
| ☕Maven | org.wildfly.security:wildfly-elytron | ≥ 1.16.0.CR1&&< 1.20.3.Final | 1.20.3.Finalorg.wildfly.security:wildfly-elytron:1.20.3.Final |
Affected Products
jboss enterprise application platformredhatwildfly elytronredhatDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.wildfly.security:wildfly-elytron, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.wildfly.security:wildfly-elytron to 1.15.15.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-jmj6-p2j9-68cp 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.
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 JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 | eap7-glassfish-el-0:3.0.1-4.b08_redhat_00005.1.ep7.el7 | RHSA-2025:9582 |
| Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 | eap7-jackson-annotations-0:2.10.4-3.redhat_00006.1.el7eap | RHSA-2025:9583 |
| Red Hat JBoss Enterprise Application Platform 7.4.9 | org.wildfly.security/wildfly-elytron:1.15.16.Final-redhat-00001 | RHSA-2023:0556 |
| Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 | eap7-wildfly-elytron-0:1.15.16-1.Final_redhat_00001.1.el8eap | RHSA-2023:0553 |
| Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 | eap7-wildfly-elytron-0:1.15.16-1.Final_redhat_00001.1.el9eap | RHSA-2023:0554 |
| Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 | eap7-wildfly-elytron-0:1.15.16-1.Final_redhat_00001.1.el7eap | RHSA-2023:0552 |
| RHPAM 7.13.4 async | see advisory | RHSA-2023:4983 |
Frequently Asked Questions
Is GHSA-jmj6-p2j9-68cp in your dependencies?
Find it across Maven, including transitive dependencies.