What is CVE-2026-23733?

CVE-2026-23733 is a medium-severity vulnerability in Lobehub Lobe-chat, classified under Code Injection. CVSS score: 6.4/10. Published 2026-01-18.

How severe is CVE-2026-23733?

Medium severity. CVSS v3 base score is 6.4 out of 10.

RCE in Lobehub Lobe-chat

CVE-2026-23733

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 applicati…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.002 (35.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L.

Affected products

Lobehub Lobe-chat — versions < 2.0.0-next.180

Weakness classification (CWE)

CWE-94 — Code Injection

References

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

Frequently asked questions

What is CVE-2026-23733?: CVE-2026-23733 is a medium-severity vulnerability in Lobehub Lobe-chat, classified under Code Injection. CVSS score: 6.4/10. Published 2026-01-18.
How severe is CVE-2026-23733?: Medium severity. CVSS v3 base score is 6.4 out of 10.