Auth bypass in Openproject
CVE-2026-24777
OpenProject is an open-source, web-based project management software. Prior to 17.0.2, users with the Manage Users permission can lock and unlock users. This functionality should only be possible for users of the application, but they were not supposed to be able to lock application administrators. Due to a missing permission check this logic was not enforced. The problem was fixed in OpenProject 17.0.2The problem was fixed in OpenProject 17.0.2.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (25.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Openproject
- Opf Openproject — versions < 17.0.2
Weakness classification (CWE)
References
- github.com/opf/openproject/security/advisories/GHSA-fq66-cwg6-qq69 (Vendor Advisory)
- github.com/opf/openproject/releases/tag/v17.0.2 (Release Notes)
Frequently asked questions
- What is CVE-2026-24777?
- CVE-2026-24777 is a medium-severity vulnerability in Openproject, classified under Missing Authorization. CVSS score: 6.7/10. Published 2026-02-09.
- How severe is CVE-2026-24777?
- Medium severity. CVSS v3 base score is 6.7 out of 10.