CVE-2026-72919

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

MEDIUM

4.3

CVSS Score

Published: August 10, 2026 at 09:44 PM UTC

Updated: October 24, 2026 at 03:10 PM UTC

1 product affected across 1 vendorChat Rocket Chat

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Severity

MEDIUM4.3

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Chat Rocket Chat · Rocket Chat

90%

v < 7.10.14>= 8.0.0, < 8.0.8>= 8.1.0, < 8.1.7>= 8.2.0, < 8.2.7>= 8.3.0, < 8.3.7>= 8.4.0, < 8.4.5>= 8.5.0, < 8.5.2>= 8.6.0, < 8.6.1

Affected range stops below 7.10.14, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.0.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.1.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.2.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.3.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.4.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.5.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.6.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRM

Source: cverecord

https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-4mvx-9h2h-hmg3

x_refsource_MISC

Source: cverecord

https://github.com/RocketChat/Rocket.Chat/pull/41206

x_refsource_MISC

Source: cverecord

https://github.com/RocketChat/Rocket.Chat/commit/175a19c4151f41910499ef37df54f58022276d12

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-862

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