CVE-2026-23744
REC in MCPJam inspector due to HTTP Endpoint exposes
CRITICAL 9.8EPSS 67.5%
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.
- Affected
- MCPJam · inspector
- CVSS v3.1 GITHUB
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 67.52% chance of exploitation in the next 30 days, 99th percentile
- Nuclei
- critical · CWE-306
- Published
- 2026-01-16
Proof-of-concept exploits (42)
- boroeurnprach/CVE-2026-23744-PoC12★ · 2026-06-14
- suljov/CVE-2026-23744-Remote-Code-Execution-POC12★ · 2026-03-22
- H1sok444/CVE-2026-23744-PoC0★ · 2026-03-22
- FrenzisRed/CVE-2026-237444★ · 2026-03-23
- luiskrnr/exploit-CVE-2026-237444★ · 2026-04-10
- AhmadF77/CVE-2026-237440★ · 2026-03-27
- CyLock11/CVE-2026-237440★ · 2026-09-30
- ctzisme/CVE-2026-237441★ · 2026-03-26
- InzegoSec/CVE-2026-237441★ · 2026-03-25
- 0xg00se/CVE-2026-23744-script1★ · 2026-03-27
- d3vn0mi/CVE-2026-23744-POC0★ · 2026-03-28
- fcjaviergarcia/CVE-2026-23744-POC0★ · 2026-03-27
- z4yd3/PoC-CVE-2026-237440★ · 2026-03-25
- avivyap/CVE-2026-237440★ · 2026-06-04
- p1ctur3p3rf3ct/CVE-2026-237440★ · 2026-05-31
- m2sousa/CVE-2026-237440★ · 2026-06-02
- Least-Significant-Bit/CVE-2026-237440★ · 2026-05-31
- rohit-sundar/cve-2026-237441★ · 2026-06-26
- oryk0/CVE-2026-237440★ · 2026-06-06
- keeieb79/CVE-2026-23744-poc0★ · 2026-06-05
- sbouabid-sec/CVE-2026-23744-POC0★ · 2026-05-31
- alisster00/CVE-2026-23744-RCE1★ · 2026-06-02
- diamorphine666/CVE-2026-23744-exploit0★ · 2026-07-04
- MrR0b0t19/CVE-2026-23744-PoC0★ · 2026-06-03
- Dahalsamir/CVE-2026-23744-MCPJAM-RCE-exploit0★ · 2026-06-05
- daemoncibsec/mcpExec0★ · 2026-08-16
- afifudinmtop/MCPJam-Inspector-1.4.2-Remote-Code-Execution-CVE-2026-237440★ · 2026-06-01
- SrGinebras/CVE-2026-23744-RCE-for-MCPjam-inspector-v1.4.21★ · 2026-06-03
- jf-gondim/mcp-pwn0★ · 2026-06-08
- CerberusMrXi/CVE-2026-23744-MCPJam-Exploit7★ · 2026-07-14
- ozcanpng/CVE-2026-237441★ · 2026-07-11
- 0x77FSec/CVE-2026-237440★ · 2026-07-10
- nullRoot-Red/CVE-2026-237440★ · 2026-08-07
- Mluex0/CVE-2026-23744-PoC3★ · 2026-08-11
- sonnelon/CVE-2026-23744-PoC0★ · 2026-08-10
- itsC1SCO/mcpjam-to-root0★ · 2026-08-23
- pppxo/CVE-2025-49596-PoC0★ · 2026-03-26
- BabaCrow-byte/mcp-rce-poc0★ · 2026-04-02
- migg123/web_exploit_journey1★ · 2026-07-03
- unRony/MCPJam-inspector-RCE0★ · 2026-06-03
- 0xSoulaimane/CVE-2026-23744-POC0★ · 2026-05-31
- 01xJB/CVE-2026-23744-POC0★ · 2026-10-09
Nuclei templates (1)
Metasploit modules (1)
ExploitDB entries (1)
Security advisories
- MCPJam/inspector/security/advisories/GHSA-232v-j27c-5pp6
- advisories/GHSA-232v-j27c-5pp6
- MCPJam/inspector/commit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a