CVE-2026-23744

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/16/2026

Last Modified3/13/2026

Sourcenvd

Honeypot Sightings0

Affected Products

mcpjam:inspector

Weaknesses (CWE)

CWE-306

References

https://github.com/MCPJam/inspector/commit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a(security-advisories@github.com)

https://github.com/MCPJam/inspector/security/advisories/GHSA-232v-j27c-5pp6(security-advisories@github.com)

IOC Correlations

No correlations recorded

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