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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
NVD MITRE
EPSS Score
45.0%
Top 1.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Nuclei

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

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
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
View detailed technique mapping

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
and 1 more references View all →

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