CVE-2026-19964

MEDIUM CVSS 4.0: 2.0 EPSS 0.22%
Updated Aug 20, 2026
Jij-Inc
Parameter Value
CVSS 2.0 (MEDIUM)
Type CWE-74 (Injection), CWE-94 (Code Injection)
Vendor Jij-Inc
Public PoC No

A vulnerability was found in Jij-Inc Jij-MCP-Server 0.1.0. This affects the function PythonREPL.run of the file jij_mcp/python_repr.py of the component jm_check. The manipulation of the argument code results in code injection.

It is possible to launch the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0

Vulnerable Products

jij-inc:jij-mcp-server