Stored XSS Vulnerability in LobeChat Open Source Chat Application
CVE-2026-23733

6.4MEDIUM

Key Information:

Vendor

Lobehub

Status
Lobe-chat
Vendor
CVE Published:
18 January 2026

What is CVE-2026-23733?

LobeChat is an open-source chat application that suffers from a stored Cross-Site Scripting (XSS) vulnerability found in the Mermaid artifact renderer. This flaw permits attackers to execute arbitrary JavaScript within the application's context. Additionally, it can be escalated to Remote Code Execution (RCE) by exploiting the electronAPI IPC bridge, allowing malicious actors to issue arbitrary commands on the victim's system. The issue has been addressed in version 2.0.0-next.180.

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Affected Version(s)

lobe-chat < 2.0.0-next.180

References

https://github.com/lobehub/lobe-chat/security/advisories/...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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