CVE-2026-63104 Kaneo 2.3.12 < 2.12.2 Missing Authorization via Bulk Task Endpoint
Authenticated users can bypass permission checks to delete or modify tasks in Kaneo workspaces via the bulk task endpoint.
- 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-2026-63104?
CVE-2026-63104 is a high-severity missing authorization vulnerability in usekaneo kaneo, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Kaneo versions 2.3.12 before 2.12.2 contain a missing authorization vulnerability that allows authenticated workspace members with viewer or member roles to delete and modify tasks beyond their assigned permissions by exploiting the bulk task endpoint that omits workspace permission checks. Attackers can send requests to the PATCH /api/task/bulk endpoint, which verifies only workspace membership without calling the role-based permission check enforced on all other task endpoints, to permanently delete all tasks or modify task status, priority, assignee, due date, and labels in a workspace.
Weakness: CWE-862
Which versions are affected by CVE-2026-63104?
How do I fix CVE-2026-63104?
No fix has been published for CVE-2026-63104 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-2026-63104 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-63104 exists.
Sources
Also known as GHSA-gx46-mfgj-vm86.