CVE-2026-49278

Medium

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.

SeverityMedium
CVSS6.7
Exploit probability—
ProductRocket.Chat
PublishedJun 24, 2026
First seenJun 24, 2026
Weakness typeCWE-285CWE-285

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
RocketChat Rocket.Chat>= 8.5.0-rc.0, < 8.5.0, >= 8.4.0-rc.0, < 8.4.2, >= 8.3.0-rc.0, < 8.3.4, >= 8.2.0-rc.0, < 8.2.4, >= 8.1.0-rc.0, < 8.1.5, >= 8.0.0-rc.0, < 8.0.6, >= 7.11.0-rc.0, < 7.13.8, < 7.10.12—

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