CVE-2026-49278: Rocketchat Rocket.chat

Medium severity, CVSS 6.7. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Rocketchat Rocket.chat: from 8.5.0-rc.0, before 8.5.0 (fixed in 8.5.0); from 8.4.0-rc.0, before 8.4.2 (fixed in 8.4.2); from 8.3.0-rc.0, before 8.3.4 (fixed in 8.3.4); from 8.2.0-rc.0, before 8.2.4 (fixed in 8.2.4); from 8.1.0-rc.0, before 8.1.5 (fixed in 8.1.5); from 8.0.0-rc.0, before 8.0.6 (fixed in 8.0.6); …

Published 2026-06-24. Last modified 2026-06-26.