Secuno
ENNL
Book demo

CVE-2026-23744

Mcpjam Inspector remote code execution

9.8 CRITICALPublic exploitEPSS 67.5%
  1. Published16 Jan 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Mcpjam Inspector< 1.4.3

Remediation

Fixed in
Mcpjam Inspector≥ 1.4.3

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-876899.8
The Metasploit Framework Web Service REST API (msf-ws) exposes the credential store…
CVE-2026-843138.8
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, POST…
CVE-2026-1095759.8
In HAProxy Data Plane API 2.2.0 through 3.4.3 (and corresponding Enterprise Edition…
CVE-2026-571189.8
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59,…
CVE-2026-1093718.2
ZITADEL 3.0.0 before 4.18.0 contains a missing authentication vulnerability in the…
CVE-2026-1085498.1
cc-connect through 1.5.0 contains a missing authentication vulnerability in the MAX…

Frequently asked

Is CVE-2026-23744 being actively exploited?

CVE-2026-23744 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 67.5%.

How severe is CVE-2026-23744?

CVE-2026-23744 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 67.5% probability of exploitation.

Which products are affected by CVE-2026-23744?

Affected products include Mcpjam Inspector.

How do I fix CVE-2026-23744?

Upgrade affected software to a fixed version, for example Mcpjam Inspector 1.4.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-23744 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.