GHSA-j63h-hmgw-x4j7 is a medium-severity (CVSS 6.5) Information Exposure vulnerability in org.opencastproject:opencast-common. O3 Security confirms whether GHSA-j63h-hmgw-x4j7 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Opencast still publishes global system account credentials
Real-World Exposure
org.opencastproject:opencast-common☕org.opencastproject:opencast-ingest-service-impl☕org.opencastproject:opencast-kernel☕org.opencastproject:opencast-publication-service-oaipmh-remoteReal-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
Description
Opencast prior to versions 17.6 would incorrectly send the hashed global system account credentials (ie: org.opencastproject.security.digest.user and org.opencastproject.security.digest.pass) when attempting to fetch mediapackage elements included in a mediapackage XML file. A previous CVE prevented many cases where the credentials were inappropriately sent, but not all. The remainder are addressed with this patch.
Impact
Anyone with ingest permissions could cause Opencast to send its hashed global system account credentials to a url of their choosing.
Patches
This issue is fixed in Opencast 17.6
If you have any questions or comments about this advisory:
- Open an issue in our issue tracker
- Email us at [email protected]
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.opencastproject:opencast-common | all versions | 17.6 |
| ☕Maven | org.opencastproject:opencast-ingest-service-impl | all versions | 17.6 |
| ☕Maven | org.opencastproject:opencast-kernel | all versions | 17.6 |
| ☕Maven | org.opencastproject:opencast-publication-service-oaipmh-remote | all versions | 17.6 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.opencastproject:opencast-common. 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.opencastproject:opencast-common to 17.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-j63h-hmgw-x4j7 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-j63h-hmgw-x4j7 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-j63h-hmgw-x4j7. 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-j63h-hmgw-x4j7 in your dependencies?
O3 detects GHSA-j63h-hmgw-x4j7 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.