Missing Authorization in Rocket.Chat - CVE-2026-72919
Published: November 9, 2026
Vulnerability identifier: #VU163160
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-72919
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an authenticated remote attacker to convert public channels they do not own or manage into teams in Rocket.Chat.
The vulnerability exists due to missing authorization in the channels.convertToTeam REST endpoint when a request identifies a channel by channelName rather than channelId. An authenticated remote attacker can submit a channel name using the create-team permission granted to registered users by default, bypassing the channel ownership or management check.
Affected software
Rocket.Chat
How to mitigate CVE-2026-72919
Install security update from vendor's website.
Rocket.Chat - addressed in versions 7.10.14, 8.0.8, 8.1.7, 8.2.7, 8.3.7, 8.4.5, 8.5.2, 8.6.1