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 Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Jij-Inc Jij-MCP-Server affected
Version Status Constraints
0.1.0 affected —

No data.

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Project Subscriptions

Vendors Products
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Jij-mcp-server Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://github.com/Jij-Inc/Jij-MCP-Server/issues/4 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-19964 cve-icon cve-icon
https://vuldb.com/submit/872906 cve-icon cve-icon
https://vuldb.com/vuln/391141 cve-icon cve-icon
https://vuldb.com/vuln/391141/cti cve-icon cve-icon
History

Mon, 17 Aug 2026 00:00:00 +0000

Type Values Removed Values Added
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.
Title Jij-Inc Jij-MCP-Server jm_check python_repr.py PythonREPL.run code injection
First Time appeared Jij-inc
Jij-inc jij-mcp-server
Weaknesses CWE-74
CWE-94
CPEs cpe:2.3:a:jij-inc:jij-mcp-server:*:*:*:*:*:*:*:*
Vendors & Products Jij-inc
Jij-inc jij-mcp-server
References
Metrics cvssV2_0

{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.5, 'vector': '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'}

cvssV3_1

{'score': 5.5, 'vector': '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'}

cvssV4_0

{'score': 5.1, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-08-16T23:45:08.345Z

Reserved: 2026-08-16T07:12:53.592Z

Link: CVE-2026-19964

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-17T00:16:27.290

Modified: 2026-08-17T00:16:27.290

Link: CVE-2026-19964

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses