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Advisory record · GHSA-mjf9-4pcv-vfg7

Apache OpenMeetings vulnerable to Deserialization of Untrusted Data

CVSS 9.8 CriticalCriticalEPSS 0.69 · 99th percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.
  • CVSS score 9.8 (7.0 or more) and EPSS 0.69 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the GitHub Advisory Database at 8 Jan 2025, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.apache.openmeetings:openmeetings-parentMaven>=2.1.0, <8.0.08.0.0
Identifiers
GHSA-mjf9-4pcv-vfg7 · CVE-2024-54676
Weakness (CWE)
CWE-502
Tags
Published
8 Jan 2025
Updated
8 Jan 2025

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Apache OpenMeetings versions from 2.1.0 before 8.0.0 are vulnerable to deserialization of untrusted data. The default clustering setup does not define allow or deny lists for OpenJPA serialization, so an attacker may be able to trigger unsafe deserialization; the source does not state the required access level. Upgrade to version 8.0.0, and if you cannot upgrade, add OpenJPA serialization class whitelist and blacklist settings to your startup configuration as described in the clustering documentation.

Written 7 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.69, the 99th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:12 UTC First seen by agentprime
  2. 31 Oct 2026, 15:12 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.