CVE-2026-72918

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 7.10.14, 8.0.8, 8.1.7, 8.2.7, 8.3.7, 8.4.5, 8.5.2, and 8.6.1, the stream-notify-user stream in the WebSocket protocol allows an authenticated user to write arbitrary notification bodies because the sender is not checked, and the client-side UI can create an ephemeral fake message in another user's currently open chat. This issue is fixed in versions 7.10.14, 8.0.8, 8.1.7, 8.2.7, 8.3.7, 8.4.5, 8.5.2, and 8.6.1.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-27jx-236m-3f5j

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-10 22:17

Updated : 2026-09-09 20:50

NVD link : CVE-2026-72918

Mitre link : CVE-2026-72918

CVE.ORG link : CVE-2026-72918

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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