GHSA-c4mp-h3m2-h5mc
HIGHGHSA-c4mp-h3m2-h5mc is a high-severity (CVSS 8.3) XML External Entity (XXE) vulnerability in org.jvnet.hudson.plugins:ccm. O3 Security confirms whether GHSA-c4mp-h3m2-h5mc is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Jenkins CCM Plugin vulnerable to Improper Restriction of XML External Entity Reference
Real-World Exposure
org.jvnet.hudson.plugins:ccmReal-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
Jenkins CCM Plugin 3.1 and earlier processes XML external entities in files it parses as part of the build process, allowing attackers with user permissions in Jenkins to extract secrets from the Jenkins master, perform server-side request forgery, or denial-of-service attacks.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.jvnet.hudson.plugins:ccm | all versions | 3.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jvnet.hudson.plugins:ccm. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update org.jvnet.hudson.plugins:ccm to 3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c4mp-h3m2-h5mc 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 pinpoints whether GHSA-c4mp-h3m2-h5mc is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-c4mp-h3m2-h5mc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-c4mp-h3m2-h5mc in your dependencies?
O3 detects GHSA-c4mp-h3m2-h5mc across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.