CVE-2026-111667 REBUILD through 4.5.0 Missing Authorization via /project/comments/list Endpoint
Authenticated low-privileged users can read private project task comments and attachments by bypassing membership 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-2026-111667?
CVE-2026-111667 is a medium-severity missing authorization vulnerability in getrebuild rebuild, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
REBUILD through 4.5.0 contains a missing authorization vulnerability in TaskCommentController.commentList that allows authenticated low-privileged users to read task comments without project membership checks. Attackers can supply the id of a task in a private project to the /project/comments/list endpoint to retrieve its comment content and attachment references.
Weakness: CWE-639
Which versions are affected by CVE-2026-111667?
How do I fix CVE-2026-111667?
No fix has been published for CVE-2026-111667 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-2026-111667 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111667 exists.
Sources
Also known as GHSA-5cv6-8j9w-94rq.