Answer in brief
CVE-2026-49278 records a Medium severity (CVSS 6.7) vulnerability in Rocket.Chat: Livechat Visitor Profile Disclosure Leaks Bearer Token and Enables Visitor Impersonation. The current sources do not mark it as known exploited. The current feed maps RocketChat/Rocket.Chat (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps RocketChat/Rocket.Chat (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| RocketChat/Rocket.Chatgeneric | >=8.5.0-rc.0 <8.5.0 || >=8.4.0-rc.0 <8.4.2 || >=8.3.0-rc.0 <8.3.4 || >=8.2.0-rc.0 <8.2.4 || >=8.1.0-rc.0 <8.1.5 || >=8.0.0-rc.0 <8.0.6 || >=7.11.0-rc.0 <7.13.8 || <7.10.12 | 7.10.12, 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8 |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 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.
Quoted source text, attributed separately from HOL analysis.