CVE-2026-44731 — MEDIUM (4.3)

Vulnerability Description

OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the web application's meetings filter feature leaks whether a given user ID corresponds to a valid account and discloses the user's full name, allowing an attacker to enumerate all existing user accounts by probing user IDs and observing differences in the server response. This vulnerability is fixed in 17.3.2 and 17.4.0.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-639

References

https://github.com/opf/openproject/security/advisories/GHSA-x7j3-cfgf-7mc4

FAQ

What is CVE-2026-44731?

CVE-2026-44731 is a vulnerability with a CVSS score of 4.3 (MEDIUM). OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the web application's meetings filter feature leaks whether a given user ID corresponds to a valid accoun...

How severe is CVE-2026-44731?

CVE-2026-44731 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-44731?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.