CVE-2025-67744

CRITICAL CVSS 3.1: 9.6 EPSS 0.63%
Updated Oct 07, 2026
Thinkinai
Parameter Value
CVSS 9.6 (CRITICAL)
Affected Versions before 0.5.3
Fixed In 0.5.3
Type CWE-94 (Code Injection)
Vendor Thinkinai
Public PoC No

DeepChat is an open-source artificial intelligence agent platform that unifies models, tools, and agents. Prior to version 0.5.3, a security vulnerability exists in the Mermaid diagram rendering component that allows arbitrary JavaScript execution. Due to the exposure of the Electron IPC renderer to the DOM, this Cross-Site Scripting (XSS) flaw escalates to full Remote Code Execution (RCE), allowing an attacker to execute arbitrary system commands.

Two concurrent issues, unsafe Mermaid configuration and an exposed IPC interface, cause this issue. Version 0.5.3 contains a patch.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Thinkinai Deepchat
cpe:2.3:a:thinkinai:deepchat:*:*:*:*:*:*:*:*
— 0.5.3