---
id: CVE-2026-49278
title: >-
  Rocket.Chat is an open-source, secure, fully customizable communications
  platform
summary: >-
  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-i…
severity: medium
cvss: 6.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L'
cwe:
  - CWE-285
vendor: RocketChat
product: Rocket.Chat
affected:
  - 'Rocket.Chat >= 8.5.0-rc.0, < 8.5.0'
  - 'Rocket.Chat >= 8.4.0-rc.0, < 8.4.2'
  - 'Rocket.Chat >= 8.3.0-rc.0, < 8.3.4'
  - 'Rocket.Chat >= 8.2.0-rc.0, < 8.2.4'
  - 'Rocket.Chat >= 8.1.0-rc.0, < 8.1.5'
  - 'Rocket.Chat >= 8.0.0-rc.0, < 8.0.6'
  - 'Rocket.Chat >= 7.11.0-rc.0, < 7.13.8'
  - Rocket.Chat < 7.10.12
published: '2026-06-24'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T23:17:45.743'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-49278'
references:
  - url: >-
      https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-cqj7-h8cj-jmf2
    label: security-advisories@github.com
  - url: >-
      https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-cqj7-h8cj-jmf2
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-06-26T03:55:31.538981Z'
epss: 0.00414
epssPercentile: 0.35826
ingestedAt: '2026-11-05T06:38:03.620Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.