Vulnerability in Openproject
CVE-2026-22605
OpenProject is an open-source, web-based project management software. OpenProject versions prior to version 16.6.3, allowed users with the View Meetings permission on any project, to access meeting details of meetings that belonged to projects, the user does not have access to. This issue has been patched in version 16.6.3.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (11.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 11.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Openproject
- Opf Openproject — versions < 16.6.3
Weakness classification (CWE)
References
- github.com/opf/openproject/security/advisories/GHSA-fq4m-pxvm-8x2j (Patch, Vendor Advisory)
- github.com/opf/openproject/releases/tag/v16.6.3 (Release Notes)
Frequently asked questions
- What is CVE-2026-22605?
- CVE-2026-22605 is a medium-severity vulnerability in Openproject, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-01-10.
- How severe is CVE-2026-22605?
- Medium severity. CVSS v3 base score is 4.3 out of 10.