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2 vulnerabilities by MCPJam
CVE-2026-23744 (GCVE-0-2026-23744)
Vulnerability from nvd – Published: 2026-01-16 20:10 – Updated: 2026-01-16 21:15
VLAI
KEVIntel
Title
REC in MCPJam inspector due to HTTP Endpoint exposes
Summary
MCPJam inspector is the local-first development platform for MCP servers. Versions 1.4.2 and earlier are vulnerable to remote code execution (RCE) vulnerability, which allows an attacker to send a crafted HTTP request that triggers the installation of an MCP server, leading to RCE. Since MCPJam inspector by default listens on 0.0.0.0 instead of 127.0.0.1, an attacker can trigger the RCE remotely via a simple HTTP request. Version 1.4.3 contains a patch.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/MCPJam/inspector/security/advi… | x_refsource_CONFIRM |
| https://github.com/MCPJam/inspector/commit/e6b9cf… | x_refsource_MISC |
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CVE-2026-23744 (GCVE-0-2026-23744)
Vulnerability from cvelistv5 – Published: 2026-01-16 20:10 – Updated: 2026-01-16 21:15
VLAI
KEVIntel
Title
REC in MCPJam inspector due to HTTP Endpoint exposes
Summary
MCPJam inspector is the local-first development platform for MCP servers. Versions 1.4.2 and earlier are vulnerable to remote code execution (RCE) vulnerability, which allows an attacker to send a crafted HTTP request that triggers the installation of an MCP server, leading to RCE. Since MCPJam inspector by default listens on 0.0.0.0 instead of 127.0.0.1, an attacker can trigger the RCE remotely via a simple HTTP request. Version 1.4.3 contains a patch.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/MCPJam/inspector/security/advi… | x_refsource_CONFIRM |
| https://github.com/MCPJam/inspector/commit/e6b9cf… | x_refsource_MISC |
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}
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"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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