CVE-2026-23744

REC in MCPJam inspector due to HTTP Endpoint exposes

Published: Jan 16, 2026Updated: Jan 26, 2026 Sources: CVE List NVD GHSACWE-306

9.8CRITICAL

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-306

Affected Products

MCPJam

inspectorMixed

AI / ML / ai-agent-tooling

npm

package-ecosystem

@mcpjam/inspector

OSS Libraries

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

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

github.com

https://github.com/MCPJam/inspector/commit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a

github.com

https://nvd.nist.gov/vuln/detail/CVE-2026-23744

nvd.nist.gov

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