CVE-2026-49278 PUBLISHED

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

Assigner: GitHub_M
Reserved: 28.05.2026 Published: 24.06.2026 Updated: 24.06.2026

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.

Metrics

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

Product Status

Vendor RocketChat
Product Rocket.Chat
Versions
  • Version >= 8.5.0-rc.0, < 8.5.0 is affected
  • Version >= 8.4.0-rc.0, < 8.4.2 is affected
  • Version >= 8.3.0-rc.0, < 8.3.4 is affected
  • Version >= 8.2.0-rc.0, < 8.2.4 is affected
  • Version >= 8.1.0-rc.0, < 8.1.5 is affected
  • Version >= 8.0.0-rc.0, < 8.0.6 is affected
  • Version >= 7.11.0-rc.0, < 7.13.8 is affected
  • Version < 7.10.12 is affected

References

Problem Types

  • CWE-285: Improper Authorization CWE