PT-2026-3404 · Mermaid+2 · Mermaid+2

C2An1 · Publicado 2026-01-18 · Atualizado 2026-01-20 · CVE-2026-23733

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Crítica

Vetor base

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions LobeChat versions prior to 2.0.0-next.180

Description LobeChat is an open source chat application platform. A stored Cross-Site Scripting (XSS) issue exists in the Mermaid artifact renderer, enabling attackers to execute arbitrary JavaScript within the application. This XSS can be escalated to Remote Code Execution (RCE) by exploiting the exposed electronAPI IPC bridge, which allows attackers to run arbitrary system commands on a victim’s machine. The vulnerable component is the Mermaid artifact renderer.

Recommendations Update to version 2.0.0-next.180 or later.

Exploit

Correção

RCE

Code Injection

Enumeração de Fraquezas

CWE-94

Identificadores relacionados

CVE-2026-23733

GHSA-4GPC-RHPJ-9443

Produtos afetados

Lobe Chat

Mermaid

Electronapi

Referências · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23733.json · Exploit
• https://github.com/lobehub/lobehub/security/advisories/GHSA-4gpc-rhpj-9443 · Nota
• https://github.com/lobehub/lobe-chat · Nota
• https://github.com/lobehub/lobe-chat/security/advisories/GHSA-4gpc-rhpj-9443 · Nota
• https://twitter.com/VulmonFeeds/status/2013032335780835810 · Publicação no Twitter
• https://nvd.nist.gov/vuln/detail/CVE-2026-23733 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2026-23733 · Aviso do Fabricante
• https://twitter.com/CVEnew/status/2013027741692826017 · Publicação no Twitter
• https://osv.dev/vulnerability/GHSA-4gpc-rhpj-9443 · Aviso do Fabricante