Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mcpjam | Inspector | < 1.4.3 |
Related Weaknesses (CWE)
References
- https://github.com/MCPJam/inspector/commit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3Patch
- https://github.com/MCPJam/inspector/security/advisories/GHSA-232v-j27c-5pp6ExploitVendor Advisory
FAQ
What is CVE-2026-23744?
CVE-2026-23744 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 cra...
How severe is CVE-2026-23744?
CVE-2026-23744 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-23744?
Check the references section above for vendor advisories and patch information. Affected products include: Mcpjam Inspector.