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.
Published: 2026-08-10
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 11 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 11 Aug 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Rocketchat
Rocketchat rocket.chat
Vendors & Products Rocketchat
Rocketchat rocket.chat

Mon, 10 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
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.
Title Rocket.Chat: Insecure implementation of websocket notifications
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


Subscriptions

Rocketchat Rocket.chat
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-11T16:04:45.242Z

Reserved: 2026-08-10T17:57:26.144Z

Link: CVE-2026-72918

cve-icon Vulnrichment

Updated: 2026-08-11T16:04:38.406Z

cve-icon NVD

Status : Received

Published: 2026-08-10T22:17:10.807

Modified: 2026-08-11T17:19:14.613

Link: CVE-2026-72918

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-11T02:00:06Z

Weaknesses