What’s Vulnerable › Vulnerabilities

CVE-2026-72919: Rocket.Chat: Broken Access Control in channels.convertToTeam Allows Unauthorized Conversion of Public Channels into Teams

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% 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 channels.convertToTeam REST endpoint allows an authenticated registered user with the create-team permission to convert an unrelated public channel by supplying channelName instead of channelId because the edit-room permission is checked only for channelId. 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

• https://github.com/RocketChat/Rocket.Chat/commit/175a19c4151f41910499ef37df54f58022276d12
• https://github.com/RocketChat/Rocket.Chat/pull/41206
• https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-4mvx-9h2h-hmg3

Get alerted when CVE-2026-72919 or the next vulnerability affects your stack