VulnerabilityDeferred

CVE-2026-44731

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…

MEDIUM 4.3EPSS 0.29%

Does this matter?

Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.

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 3.1: 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.29% probability · 22th percentile
CISA KEV: Not listed
Weakness: CWE-639
Source: security-advisories@github.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.