CVE-2026-67529 Missing authorization in openproject

Medium 4.3 Published Updated

Users with time or cost entry permissions can read private work package subjects and IDs via API endpoints due to missing visibility checks.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-67529?

CVE-2026-67529 is a medium-severity missing authorization vulnerability in opf openproject, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/time_entries and GET /api/v3/cost_entries rendered _links.workPackage.title and _links.workPackage.href through associated_resource in modules/costs/lib/api/v3/time_entries/time_entry_representer.rb and modules/costs/lib/api/v3/cost_entries/cost_entry_representer.rb without checking WorkPackage.visible or view_work_packages, allowing users with view_time_entries or view_cost_entries to read private work package subjects and ids. This issue is fixed in 17.6.0.

Weakness: CWE-862, CWE-200

Which versions are affected by CVE-2026-67529?

How do I fix CVE-2026-67529?

No fix has been published for CVE-2026-67529 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-67529 being exploited?

There is no known exploitation of CVE-2026-67529 in the wild and no public exploit code.

Sources

Also known as GHSA-v3j7-vqwv-5w5q.

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