Is CVE-2026-44731 actively exploited?

No active exploitation of CVE-2026-44731 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44731 be exploited remotely?

Yes. CVE-2026-44731 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44731?

CVE-2026-44731 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-44731

CWE-639Published: June 26, 2026· Updated: Jun 29, 2026

4.3

CVSS v3.1

EPSS:0.19%probability of exploitation in 30 daysPercentile:8.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-44731 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.