Description
OpenProject is an open-source, web-based project management software. When using groups in OpenProject to manage users, the group members should only be visible to users that have the View Members permission in any project that the group is also a member of. Prior to versions 17.0.1 and 16.6.5, due to a failed permission check, if a user had the View Members permission in any project, they could enumerate all Groups and view which other users are part of the group. The issue has been fixed in OpenProject 17.0.1 and 16.6.5. No known workarounds are available.
References (1)
Core 1
Core References
Vendor Advisory x_refsource_confirm
https://github.com/opf/openproject/security/advisories/GHSA-vj77-wrc2-5h5h
Scores
CVSS v3
4.3
EPSS
0.0018
EPSS Percentile
7.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (2)
openproject/openproject
17.0.0
openproject/openproject
< 16.6.5
Published
Jan 19, 2026
Tracked Since
Feb 18, 2026