CVE-2026-23733

18.01.2026, 23:15

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.

Code Injection

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	6.4 MEDIUM	LOCAL	HIGH	HIGH	CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L
GitHub_M	CNA	6.4 MEDIUM	LOCAL	HIGH	HIGH	CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Common Weakness Enumeration

CWE-94 - Improper Control of Generation of Code ('Code Injection')
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

References

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