CVE-2026-44736

MediumCVSS 6.5/10Last modified Oct 25, 2026

Description

OpenProject is open-source, web-based project management software. Prior to 17.4.0, the GET /api/v3/relations endpoint allows any authenticated user to retrieve relations — and the subject (title) of work packages they have no permission to view — by supplying an arbitrary work package ID in the involved, fromId, or toId filter. This bypasses the Relation.visible scope due to a flawed performance optimization in RelationQuery. This vulnerability is fixed in 17.4.0.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-200 CWE-639 CWE-836

Affected software

Vendor	Product	Versions
opf	openproject	< 17.4.0

References

Timeline

Published: Jun 26, 2026
Last modified: Oct 25, 2026
NVD status: Deferred

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