CVE-2026-44731

mediumCVSS 4.3covered by 1 sourcefirst seen 2026-06-26

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.

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Exploitation outlook

Low exploitation risk0.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-44731: OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0,…nvd · 2026-06-26

External references

NVD record for CVE-2026-44731

CVE.org record

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