Answer in brief
CVE-2026-19964 records a Unknown severity vulnerability in Jij-Inc Jij-MCP-Server jm_check python_repr.py PythonREPL.run code injection. The current sources do not mark it as known exploited. The current feed maps Jij-Inc/Jij-MCP-Server (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Jij-Inc/Jij-MCP-Server (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Jij-Inc/Jij-MCP-Servergeneric | 0.1.0 | Not reported |
Published upstream
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-19964 records a Unknown severity vulnerability in Jij-Inc Jij-MCP-Server jm_check python_repr.py PythonREPL.run code injection. The current sources do not mark it as known exploited. The current feed maps Jij-Inc/Jij-MCP-Server (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Jij-Inc/Jij-MCP-Server (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Jij-Inc/Jij-MCP-Servergeneric | 0.1.0 | Not reported |
Published upstream
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.