CVE-2026-116018

EUVD-2026-109276
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/ONEARMY/community-platform/blob/v2.163.2/src/routes/api.notifications.$id.read.ts#L6-L22
https://github.com/ONEARMY/community-platform/commit/571732c26caf1a0a46e5335d275cef2e19dfab08
https://github.com/ONEARMY/community-platform/issues/5022
https://github.com/ONEARMY/community-platform/pull/5011
https://github.com/ONEARMY/community-platform/releases/tag/v2.165.2
https://hackmd.io/@hieuPenguinnn/onearmy-community-platform-notification-read-idor
https://www.vulncheck.com/advisories/onearmy-community-platform-before-2.165.2-idor-via-notification-read-endpoint