CVE-2026-116018
ONEARMY community-platform before 2.165.2 IDOR via notification read endpoint
ONEARMY community-platform
CVSS
5.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
What fixes it
- 2.165.2community-platformCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Reports 1
1 outlet mention it. Reports are not confirmation; each links to its source.
Description
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.
Text from CVE List
Affected versions 1
- community-platformaffected: all versions before 2.165.2CVE List
References 7
- github.com/ONEARMY/community-platform/pull/5011Fixvia CVE List
- github.com/ONEARMY/community-platform/commit/571732c26caf1a0a46e5335d275cef2e19dfab08Fixvia CVE List
- github.com/ONEARMY/community-platform/releases/tag/v2.165.2Fixvia CVE List
- hackmd.io/@hieuPenguinnn/onearmy-community-platform-notification-read-idorAdvisoryvia CVE List
- vulncheck.com/advisories/onearmy-community-platform-before-2.165.2-idor-via-notification-read-endpointAdvisoryvia CVE List
- github.com/ONEARMY/community-platform/issues/5022Referencevia CVE List
- github.com/ONEARMY/community-platform/blob/v2.163.2/src/routes/api.notifications.$id.read.ts#L6-L22Referencevia CVE List