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.
Metrics
Affected Vendors & Products
References
History
Wed, 14 Jan 2026 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:* |
Tue, 13 Jan 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 12 Jan 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openproject
Openproject openproject |
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| Vendors & Products |
Openproject
Openproject openproject |
Sat, 10 Jan 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | OpenProject is Vulnerable to User Enumeration via User ID | |
| Weaknesses | CWE-200 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-01-10T01:06:12.921Z
Updated: 2026-01-13T20:07:25.275Z
Reserved: 2026-01-07T21:50:39.533Z
Link: CVE-2026-22602
Updated: 2026-01-13T20:07:22.747Z
Status : Analyzed
Published: 2026-01-10T02:15:49.057
Modified: 2026-01-14T22:26:18.717
Link: CVE-2026-22602
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