What’s Vulnerable › Vulnerabilities
CVE-2026-72918: Rocket.Chat: Insecure implementation of websocket notifications
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-10 · updated 2026-10-24
- Weakness: CWE-862
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.
Affected products
- Rocket.Chat: before 7.10.14; from 8.0.0, < 8.0.8; from 8.1.0, < 8.1.7; from 8.2.0, < 8.2.7; from 8.3.0, < 8.3.7; from 8.4.0, < 8.4.5
References
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