GHSA-qq38-mxpq-rrpj
HIGHGHSA-qq38-mxpq-rrpj is a high-severity (CVSS 8.1) CWE-863 vulnerability in org.jenkins-ci.plugins:gitlab-oauth. O3 Security confirms whether GHSA-qq38-mxpq-rrpj is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Improper authorization of users and groups with the same base name in Jenkins GitLab Authentication Plugin
Blast Radius
org.jenkins-ci.plugins:gitlab-oauthReal-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
GitLab Authentication Plugin 1.5 and earlier does not differentiate between user names and hierarchical group names when performing authorization. This allows an attacker with permissions to create groups in GitLab to gain the privileges granted to another user or group.
GitLab Authentication Plugin 1.6 performs user name and group name authorization checks using the appropriate GitLab APIs.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.jenkins-ci.plugins:gitlab-oauth | all versions | 1.6 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:gitlab-oauth. 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.jenkins-ci.plugins:gitlab-oauth to 1.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qq38-mxpq-rrpj 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-qq38-mxpq-rrpj 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-qq38-mxpq-rrpj. 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-qq38-mxpq-rrpj in your dependencies?
O3 detects GHSA-qq38-mxpq-rrpj across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.