CVE-2026-63104: Kaneo 2.3.12 < 2.12.2 Missing Authorization via Bulk Task Endpoint
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Kaneoto a version that resolves this vulnerability.Fixed in 2.12.2
Event History
Frequently Asked Questions
Which users can exploit this issue?
Any authenticated member of an affected workspace with either the viewer or member role can exploit it. The endpoint checks workspace membership but does not enforce the role-based task permissions applied by other task endpoints.
What access does an attacker need?
The attacker needs an authenticated account that belongs to the target workspace. No user interaction is required, and the vulnerable endpoint is reachable over the network.
What actions can an attacker perform?
An attacker can use PATCH /api/task/bulk to permanently delete tasks or change task status, priority, assignee, due date, and labels across the workspace, including tasks outside their assigned permissions.
Which versions should be remediated?
Kaneo versions from 2.3.12 up to, but not including, 2.12.2 are affected. Upgrade to version 2.12.2 or later.