CVE-2026-116018

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.

CVSS 4.0

5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)

CWE

CWE-639

Published

2026-10-24

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

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

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