Description
OpenProject is an open-source, web-based project management software. Prior to version 16.6.2, a low‑privileged logged-in user can view the full names of other users. Since user IDs are assigned sequentially and predictably (e.g., 1 to 1000), an attacker can extract a complete list of all users’ full names by iterating through these URLs. The same behavior can also be reproduced via the OpenProject API, allowing automated retrieval of full names through the API as well. This issue has been patched in version 16.6.2. Those who are unable to upgrade may apply the patch manually.
References
https://github.com/opf/openproject/pull/21281
https://github.com/opf/openproject/security/advisories/GHSA-7fvx-9h6h-g82j
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
3.5 · Low
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-10T02:15:49.057Z
5 days agoLast modified
2026-01-14T22:26:18.717Z
5 hours ago