Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Apache OpenMeetings versions 3.1.3 up to but not including 9.0.0 are affected. The REST login endpoint accepts the username and password as GET query parameters, so credentials can end up in server logs, proxy logs, and browser history. The source gives few details on the exact impact. Users should upgrade to version 9.0.0, which fixes the issue.
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
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.5 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.0051, the 43rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:20 UTC First seen by agentprime
- 31 Oct 2026, 14:20 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-gcvm-c75m-h4p4
- OSV: GHSA-gcvm-c75m-h4p4
- nvd.nist.gov/vuln/detail/CVE-2026-34020
- github.com/apache/openmeetings
- lists.apache.org/thread/2h3h9do5tp17xldr0nps1yjmkx4vs3db
- owasp.org/www-community/vulnerabilities/Information_exposure_through_query_strings_in_url
- www.openwall.com/lists/oss-security/2026/04/09/12