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 v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://hackmd.io/@hieuPenguinnn/onearmy-community-platform-notification-read-idor

Configurations

No configuration.

History

29 Oct 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://hackmd.io/@hieuPenguinnn/onearmy-community-platform-notification-read-idor -~~	() https://hackmd.io/@hieuPenguinnn/onearmy-community-platform-notification-read-idor -

24 Oct 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-24 12:16

Updated : 2026-10-29 16:17

NVD link : CVE-2026-116018

Mitre link : CVE-2026-116018

CVE.ORG link : CVE-2026-116018

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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