CVE-2026-49355 OpenProject: Private work package data disclosure through single meeting agenda item API
Attackers can access private work package data via the meeting agenda item API, exposing sensitive project information.
- 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-2026-49355?
CVE-2026-49355 is a medium-severity vulnerability in opf openproject, published on 26 Jun 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 17.4.0, `GET /api/v3/meetings/:meeting_id/agenda_items/:agenda_item_id` discloses private work package data from a linked work package that belongs to a private/inaccessible project. This vulnerability is fixed in 17.4.0.
Which versions are affected by CVE-2026-49355?
How do I fix CVE-2026-49355?
No fix has been published for CVE-2026-49355 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-49355 being exploited?
There is no known exploitation of CVE-2026-49355 in the wild and no public exploit code.
Sources
Also known as GHSA-g387-6rm2-xw88.