Medium severity · published Jan 18, 2026
CVE-2026-23733
Lobe Chat has Cross-Site Scripting (XSS) issue that may escalate to Remote Code Execution (RCE)
6.4
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L
Attack vector
Local
Complexity
High
Privileges
High
User interaction
Required
Confidentiality
High
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LO
lobe-chat · lobehub
< 2.0.0-next.180 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23733
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23733
github.com
https://github.com/lobehub/lobe-chat/security/advisories/GHSA-4gpc-rhpj-9443
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