GHSA-mjf9-4pcv-vfg7 — openmeetings-parent
Fix: apache/openmeetings@1c3426cGHSA-mjf9-4pcv-vfg7 is a Deserialization of Untrusted Data vulnerability in org.apache.openmeetings:openmeetings-parent. EPSS puts its 30-day exploitation probability at 64.9% (99th percentile). A fix is available for org.apache.openmeetings:openmeetings-parent — see the affected versions and patch details below.
Apache OpenMeetings vulnerable to Deserialization of Untrusted Data
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.
- 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-mjf9-4pcv-vfg7.
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
org.apache.openmeetings:openmeetings-parentReal-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
Vendor: The Apache Software Foundation
Versions Affected: Apache OpenMeetings from 2.1.0 before 8.0.0
Description: Default clustering instructions at https://openmeetings.apache.org/Clustering.html doesn't specify white/black lists for OpenJPA this leads to possible deserialisation of untrusted data. Users are recommended to upgrade to version 8.0.0 and update their startup scripts to include the relevant 'openjpa.serialization.class.blacklist' and 'openjpa.serialization.class.whitelist' configurations as shown in the documentation.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.apache.openmeetings:openmeetings-parent | ≥ 2.1.0&&< 8.0.0 | 8.0.0org.apache.openmeetings:openmeetings-parent:8.0.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.openmeetings:openmeetings-parent, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.openmeetings:openmeetings-parent to 8.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mjf9-4pcv-vfg7 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 GHSA-mjf9-4pcv-vfg7 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-mjf9-4pcv-vfg7. 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-mjf9-4pcv-vfg7 in your dependencies?
O3 Security finds GHSA-mjf9-4pcv-vfg7 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.