REC in MCPJam inspector due to HTTP Endpoint exposes
97Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actcvss 9.8epss 45%
from disclosure to weapon4 days
Published on NVDJan 16
1st PoC+4d
VulnCheck+33d
exploitation probability
45%top 1% of all CVEs
observed exploitation
yesVulnCheck
71 public exploit(s)
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
MCPJam · inspectorpublic PoCs found — 71
exploitdbwww.exploit-db.com/exploits/52625unverifiedgithubgithub.com/boroeurnprach/CVE-2026-23744-PoC★ 9githubgithub.com/ibreakthingsforaliving/CVE-2026-23744-PoC★ 8githubgithub.com/CerberusMrXi/CVE-2026-23744-MCPJam-Exploit★ 8githubgithub.com/thisisish/HTB-DevHub★ 4githubgithub.com/Mluex0/CVE-2026-23744-PoC★ 2githubgithub.com/SrGinebras/CVE-2026-23744-RCE-for-MCPjam-inspector-v1.4.2★ 1githubgithub.com/alisster00/CVE-2026-23744-RCE★ 1githubgithub.com/afifudinmtop/MCPJam-Inspector-1.4.2-Remote-Code-Execution-CVE-2026-23744★ 0githubgithub.com/diamorphine666/CVE-2026-23744-exploit★ 0githubgithub.com/ozcanpng/CVE-2026-23744★ 0githubgithub.com/oryk0/CVE-2026-23744★ 0githubgithub.com/sbouabid-sec/CVE-2026-23744-POC★ 0githubgithub.com/Least-Significant-Bit/CVE-2026-23744★ 0githubgithub.com/MrR0b0t19/CVE-2026-23744-PoC★ 0githubgithub.com/jf-gondim/mcp-pwn★ 0githubgithub.com/m2sousa/CVE-2026-23744★ 0githubgithub.com/avivyap/CVE-2026-23744★ 0githubgithub.com/Dahalsamir/CVE-2026-23744-MCPJAM-RCE-exploit★ 0githubgithub.com/keeieb79/CVE-2026-23744-poc★ 0githubgithub.com/0x77FSec/CVE-2026-23744★ 0githubgithub.com/kennedy-aikohi/mcpjam-cve-2026-23744-validator★ 0githubgithub.com/rohit-sundar/cve-2026-23744★ 0githubgithub.com/daemoncibsec/mcpExec★ 0githubgithub.com/timgad794/DevHub-HTB-Walkthrough★ 0githubgithub.com/nullRoot-Red/CVE-2026-23744★ 0githubgithub.com/sonnelon/CVE-2026-23744-PoC★ 0githubgithub.com/p1ctur3p3rf3ct/CVE-2026-23744★ 0vulncheckvulncheck.com/xdb/156744a61ce5unverifiedvulncheckvulncheck.com/xdb/f19a9287d9f4unverifiedvulncheckvulncheck.com/xdb/22e992c6eba1unverifiedvulncheckvulncheck.com/xdb/0ec514f010abunverifiedvulncheckvulncheck.com/xdb/18ed655d7d3aunverifiedvulncheckvulncheck.com/xdb/51473bb332acunverifiedvulncheckvulncheck.com/xdb/558aeacb39afunverifiedvulncheckvulncheck.com/xdb/bd0a0368bc9funverifiedvulncheckvulncheck.com/xdb/87b1467b8018unverifiedvulncheckvulncheck.com/xdb/5c31e12d4578unverifiedvulncheckvulncheck.com/xdb/187f9131ea4aunverifiedvulncheckvulncheck.com/xdb/7df764e04e42unverifiedvulncheckvulncheck.com/xdb/86e37564190aunverifiedvulncheckvulncheck.com/xdb/04d2eb59baa0unverifiedvulncheckvulncheck.com/xdb/e355d7728e67unverifiedvulncheckvulncheck.com/xdb/754d28417536unverifiedvulncheckvulncheck.com/xdb/f90556007227unverifiedvulncheckvulncheck.com/xdb/14ec643809a4unverifiedvulncheckvulncheck.com/xdb/4e9846e1158dunverifiedvulncheckvulncheck.com/xdb/d92668d48256unverifiedvulncheckvulncheck.com/xdb/bb332d214356unverifiedvulncheckvulncheck.com/xdb/19bd1eda71f6unverifiedvulncheckvulncheck.com/xdb/1e9f5d967258unverifiedvulncheckvulncheck.com/xdb/2f8b31ea51b6unverifiedvulncheckvulncheck.com/xdb/f5a69656dee5unverifiedvulncheckvulncheck.com/xdb/8e55de8d7277unverifiedvulncheckvulncheck.com/xdb/5dfd4e5cb15funverifiedvulncheckvulncheck.com/xdb/846d968554d1unverifiedvulncheckvulncheck.com/xdb/72377de61f0cunverifiedvulncheckvulncheck.com/xdb/cfc3738e7fc3unverifiedvulncheckvulncheck.com/xdb/a790926d28faunverifiedvulncheckvulncheck.com/xdb/cbd95f6b01c3unverifiedvulncheckvulncheck.com/xdb/4f7a02d1d4cbunverifiedvulncheckvulncheck.com/xdb/bc149cf30a42unverifiedvulncheckvulncheck.com/xdb/310ef3751585unverifiedvulncheckvulncheck.com/xdb/3b7e794b8722unverifiedvulncheckvulncheck.com/xdb/6d13a01d3c1bunverifiedvulncheckvulncheck.com/xdb/accf494315beunverifiedvulncheckvulncheck.com/xdb/002265a51caaunverifiedvulncheckvulncheck.com/xdb/55939ca064efunverifiedvulncheckvulncheck.com/xdb/ea79ce610d96unverifiedvulncheckvulncheck.com/xdb/11a2aa8051bfunverifiedvulncheckvulncheck.com/xdb/5b367c011e57unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.