CVE-2026-23744

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 Reserved 2026-01-15 | Published 2026-01-16 | Updated 2026-01-16 | Assigner GitHub_M

Problem types

CWE-306: Missing Authentication for Critical Function

Product status

References

github.com/...pector/security/advisories/GHSA-232v-j27c-5pp6

github.com/...ommit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a

cve.org (CVE-2026-23744)

nvd.nist.gov (CVE-2026-23744)

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