CVE-2026-19964
Jij-Inc Jij-MCP-Server jm_check python_repr.py PythonREPL.run code injection
- State
- Published
- Severity
- 5.1 Medium
- Published
- Aug 16, 2026
- Updated
- Aug 18, 2026
- Reserved
- Aug 16, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.5 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Jij-MCP-ServerJij-Inc |
|
References
- VDB-391141 | Jij-Inc Jij-MCP-Server jm_check python_repr.py PythonREPL.run code injectionvdb-entrytechnical-description
- VDB-391141 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-19964 | CVE Analysis and Reportthird-party-advisory
- Submit #872906 | Jij-Inc Jij-MCP-Server Latest remote code executethird-party-advisory
- http://github.com/Jij-Inc/Jij-MCP-Server/issues/4exploitissue-tracking
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