CVE-2026-49278

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

MEDIUM

6.7

CVSS Score

Published: June 24, 2026 at 09:05 PM UTC

Updated: October 25, 2026 at 11:10 PM UTC

1 product affected across 1 vendorChat Rocket Chat

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Severity

MEDIUM6.7

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Chat Rocket Chat · Rocket Chat

90%

v < 7.10.12>= 7.11.0-rc.0, < 7.13.8 >= 8.0.0-rc.0, < 8.0.6 >= 8.1.0-rc.0, < 8.1.5 >= 8.2.0-rc.0, < 8.2.4 >= 8.3.0-rc.0, < 8.3.4 >= 8.4.0-rc.0, < 8.4.2 >= 8.5.0-rc.0, < 8.5.0

Affected range stops below 7.10.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.13.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.0.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.1.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.2.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.3.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.4.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.5.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM

Source: cverecord

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.7MEDIUMGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: LOW

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-285

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