CVE-2026-69262: Flowise: `DELETE /api/v1/chatflows/:id` does not validate resource type, allowing `agentflows:delete` and `chatflows:delete` to delete each other’s flow type

summary:

In Flowise, DELETE /api/v1/chatflows/:id authorizes requests with checkAnyPermission('chatflows:delete,agentflows:delete'). Possession of either permission is sufficient to reach the delete path. The delete logic does not validate the target resource type, allowing a caller with only agentflows:delete to delete a CHATFLOW, and a caller with only chatflows:delete to delete an AGENTFLOW.

details:

The delete route accepts either chatflows:delete or agentflows:delete. The subsequent logic only resolves the target record by id and workspaceId, then deletes by id without checking whether the target resource type matches the granted permission domain.

As a result, there is no binding between permission scope and flow type:

• agentflows:delete can be used to delete CHATFLOW
• chatflows:delete can be used to delete AGENTFLOW

This breaks the intended RBAC separation between Chatflows and Agentflows.

impact:

Users authorized to manage only one flow type can delete the other flow type within the same workspace, resulting in unauthorized deletion and configuration loss.

reproduction steps:

1. Log in as a user who can create API keys.
2. Create a normal CHATFLOW and record its id.
3. Create an API key with only agentflows:delete.
4. Use that API key to send:

curl -i -X DELETE \
  -H 'Authorization: Bearer <agentflows_delete_only_key>' \
  http://localhost:8080/api/v1/chatflows/<chatflow_id>

1. Observe a 200 OK response, for example:

{"raw":[],"affected":1}

1. Read the same id again and observe 404 Not Found.