CVE-2026-23733

Lobe Chat has Cross-Site Scripting (XSS) issue that may escalate to Remote Code Execution (RCE)

State: Published
Severity: 6.4 Medium
Published: Jan 18, 2026
Updated: Jan 20, 2026
Reserved: Jan 15, 2026

Description

LobeChat is an open source chat application platform. Prior to version 2.0.0-next.180, a stored Cross-Site Scripting (XSS) vulnerability in the Mermaid artifact renderer allows attackers to execute arbitrary JavaScript within the application context. This XSS can be escalated to Remote Code Execution (RCE) by leveraging the exposed `electronAPI` IPC bridge, allowing attackers to run arbitrary system commands on the victim's machine. Version 2.0.0-next.180 patches the issue.

Scores

CVSS	Score	Vector	Source
3.1	6.4 Medium	CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L	GitHub_M

Weaknesses

CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected Products

Product	Versions
lobe-chatlobehub	< 2.0.0-next.180Affected

References

https://github.com/lobehub/lobe-chat/security/advisories/GHSA-4gpc-rhpj-9443

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