CVE-2026-49278

Rocket.Chat: Livechat Visitor Profile Disclosure Leaks Bearer Token and Enables Visitor Impersonation

State: Published
Severity: 6.7 Medium
Published: Jun 24, 2026
Updated: Jun 26, 2026
Reserved: May 28, 2026

Description

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8, and 7.10.12, in the visitors.info endpoint, https://developer.rocket.chat/apidocs/get-visitor-information-by-id-1, token is returned in the response. It looks like there's no use case for the token to be present in the response and it would be a good security practice to remove it altogether. This vulnerability is fixed in 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8, and 7.10.12.

Scores

CVSS	Score	Vector	Source
3.1	6.7 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L	GitHub_M

Weaknesses

CWE-285 Improper Authorization

Affected Products

Product	Versions
Rocket.ChatRocketChat	>= 8.5.0-rc.0, < 8.5.0Affected >= 8.4.0-rc.0, < 8.4.2Affected >= 8.3.0-rc.0, < 8.3.4Affected >= 8.2.0-rc.0, < 8.2.4Affected >= 8.1.0-rc.0, < 8.1.5Affected >= 8.0.0-rc.0, < 8.0.6Affected >= 7.11.0-rc.0, < 7.13.8Affected < 7.10.12Affected

References

https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-cqj7-h8cj-jmf2

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