CVE-2026-72918Rocket.Chat: Insecure implementation of websocket notifications
Updated under an hour ago ()
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It affects RocketChat Rocket.Chat. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
RocketChat Rocket.Chat rocketchat:rocket.chat (from the name) | 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; from 8.5.0, < 8.5.2; from 8.6.0, < 8.6.1 | CNA record |
References
- https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-27jx-236m-3f5jx-refsource-confirm
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.