CVE-2026-45757: Rocketchat Rocket.chat

Low severity, CVSS 2.3. EPSS: 0.3% 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, Rocket.Chat allows users deactivated through users.deactivateIdle to keep using already-issued login tokens. A user that an administrator has marked inactive for idleness can still access authenticated REST endpoints with the old token. 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 2026-06-25.