CVE-2026-49278

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.

• CWE-285

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

Published

Jun 24, 2026

Last Modified

Jun 26, 2026

Status

Deferred

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