CVE-2026-22604

OpenProject is an open-source, web-based project management software. For OpenProject versions from 11.2.1 to before 16.6.2, when sending a POST request to the /account/change_password endpoint with an arbitrary User ID as the password_change_user_id parameter, the resulting error page would show the username for the requested user. Since this endpoint is intended to be called without being authenticated, this allows to enumerate the user names of all accounts registered in an OpenProject instance. This issue has been patched in version 16.6.2.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/opf/openproject/commit/2cff5e98649e32a197a62659a23dd4b864b7855b	Patch
https://github.com/opf/openproject/pull/3451	Issue Tracking
https://github.com/opf/openproject/releases/tag/v16.6.2	Release Notes
https://github.com/opf/openproject/security/advisories/GHSA-q7qp-p3vw-j2fh	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-10 02:15

Updated : 2026-01-14 22:27

NVD link : CVE-2026-22604

Mitre link : CVE-2026-22604

CVE.ORG link : CVE-2026-22604

JSON object : View

Products Affected

openproject

openproject

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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