CVE-2026-72918
Description
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.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| RocketChat Rocket.Chat | < 7.10.14, >= 8.0.0, < 8.0.8, >= 8.1.0, < 8.1.7, >= 8.2.0, < 8.2.7, >= 8.3.0, < 8.3.7, >= 8.4.0, < 8.4.5, >= 8.5.0, < 8.5.2, >= 8.6.0, < 8.6.1 | — |
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