Description
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.
Published: 2026-01-16
Score: 9.8 Critical
EPSS: 29.4% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-232v-j27c-5pp6 REC in MCPJam inspector due to HTTP Endpoint exposes
History

Fri, 13 Mar 2026 14:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mcpjam:inspector:*:*:*:*:*:*:*:*

Mon, 19 Jan 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Mcpjam
Mcpjam inspector
Vendors & Products Mcpjam
Mcpjam inspector

Fri, 16 Jan 2026 21:30:00 +0000

Type Values Removed Values Added
Description 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. 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.
References

Fri, 16 Jan 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 16 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Description 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.
Title REC in MCPJam inspector due to HTTP Endpoint exposes
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Mcpjam Inspector
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-01-16T21:15:53.738Z

Reserved: 2026-01-15T15:45:01.958Z

Link: CVE-2026-23744

cve-icon Vulnrichment

Updated: 2026-01-16T20:20:51.618Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-16T20:15:51.763

Modified: 2026-03-13T14:19:59.880

Link: CVE-2026-23744

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T15:00:14Z

Weaknesses