AI / ML CVE-2026-23744
CRITICAL
GHSA-232v-j27c-5pp6
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
AnalysisAI
MCPJam Inspector versions 1.4.2 and earlier allow unauthenticated remote code execution through missing authentication in the MCP server debugging platform, with EPSS 17.2% indicating active scanning.
Technical ContextAI
MCPJam Inspector, a local development platform for MCP servers, lacks authentication on critical endpoints (CWE-306). This allows remote attackers to interact with MCP server functionality without credentials, leading to code execution.
RemediationAI
Update MCPJam Inspector. Bind the service to localhost only. Never expose development tools to the network.
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External POC / Exploit Code
Leaving vuln.today