CVE-2026-116018: ONEARMY community-platform before 2.165.2 IDOR via notification read endpoint
ONEARMY community-platform before 2.165.2 contains an insecure direct object reference vulnerability that allows authenticated users to mark other users' notifications as read via POST /api/notifications/:id/read. Attackers can iterate sequential notification IDs to suppress unread indicators of users in the same tenant, causing them to miss replies, comments and new-content notices.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An authenticated user can exploit it against notifications belonging to other users in the same tenant. The attacker does not need user interaction, and sequential notification IDs can be iterated.
What is the practical impact?
An attacker can mark another user's notifications as read, suppressing their unread indicators. This may cause affected users to miss replies, comments, or notices about new content.
Which deployments are affected?
ONEARMY community-platform versions before 2.165.2 are affected. The issue is exposed through the POST /api/notifications/:id/read endpoint.