CVE-2025-49596
MCP Inspector Remote Code Execution Vulnerability
Description
The MCP inspector is a developer tool for testing and debugging MCP servers. Versions of MCP Inspector below 0.14.1 are vulnerable to remote code execution due to lack of authentication between the Inspector client and proxy, allowing unauthenticated requests to launch MCP commands over stdio. Users should immediately upgrade to version 0.14.1 or later to address these vulnerabilities.
INFO
Published Date :
June 13, 2025, 8:15 p.m.
Last Modified :
July 9, 2025, 9:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
Public PoC/Exploit Available at Github
CVE-2025-49596 has a 9 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2025-49596
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-49596.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Makefile Rust JavaScript Shell TypeScript
None
Makefile Rust Shell JavaScript
MCP-Inspector-vulncheck is a Python script that checks if an MCP Inspector server is vulnerable to CVE-2025-49596. It tests whether the /sse endpoint responds to unauthenticated requests, indicating a potential security flaw. The script is simple to use and provides clear output on whether the target server is likely vulnerable or patched.
Python
The driver specification for the Model Context Standard (MCS)
mcs modelcontextstandard specification
My Agent Engineering Bootcamp project - Building AI agents with Python, LiteLLM, and OpenAI
Python TypeScript CSS JavaScript
None
HTML Python Shell
一个 CVE 漏洞预警知识库，无 exp/poc，部分包含修复方案。A knowledge base of CVE security vulnerability, no PoCs/exploits.
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
None
adversarial-examples adversarial-attacks ai-security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-49596 vulnerability anywhere in the article.
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The Hacker News
Critical mcp-remote Vulnerability Enables Remote Code Execution, Impacting 437,000+ Downloads
Jul 10, 2025Ravie LakshmananVulnerability / AI Security Cybersecurity researchers have discovered a critical vulnerability in the open-source mcp-remote project that could result in the execution of ... Read more
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Cyber Security News
Critical Vulnerability in Anthropic MCP Inspector Let Attackers Execute Arbitrary Code
A critical Remote Code Execution (RCE) vulnerability in Anthropic’s MCP Inspector tool, designated as CVE-2025-49596, has a severe CVSS score of 9.4. This vulnerability represents one of the first cri ... Read more
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The Hacker News
Critical Vulnerability in Anthropic's MCP Exposes Developer Machines to Remote Exploits
Cybersecurity researchers have discovered a critical security vulnerability in artificial intelligence (AI) company Anthropic's Model Context Protocol (MCP) Inspector project that could result in remo ... Read more
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Daily CyberSecurity
Critical RCE in MCP Inspector Exposes AI Devs to Web-Based Exploits (CVE-2025-49596)
A critical vulnerability—CVE-2025-49596—affected the AI developer ecosystem in June 2025, when Oligo Security Research disclosed a severe Remote Code Execution (RCE) flaw in the MCP Inspector, a core ... Read more
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Daily CyberSecurity
CVE-2025-49596: Critical RCE Vulnerability in MCP Inspector Exposes AI Developer Environments
A newly disclosed security flaw in the MCP Inspector, a tool designed to test and debug Machine Context Protocol (MCP) servers, could allow unauthenticated remote code execution (RCE) — potentially pu ... Read more
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Daily CyberSecurity
Two sslh Flaws Disclosed: Remote DoS Attacks Possible via Protocol Multiplexer
In June 2025, the SUSE Security Team disclosed critical vulnerabilities in sslh, a lightweight protocol multiplexer used to serve multiple services—such as SSH and HTTPS—on the same port. Though desig ... Read more
The following table lists the changes that have been made to the
CVE-2025-49596 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
Jul. 09, 2025
Action Type Old Value New Value Added Reference https://thenewstack.io/mcp-vulnerability-exposes-the-ai-untrusted-code-crisis Added Reference https://www.oligo.security/blog/critical-rce-vulnerability-in-anthropic-mcp-inspector-cve-2025-49596 -
New CVE Received by [email protected]
Jun. 13, 2025
Action Type Old Value New Value Added Description The MCP inspector is a developer tool for testing and debugging MCP servers. Versions of MCP Inspector below 0.14.1 are vulnerable to remote code execution due to lack of authentication between the Inspector client and proxy, allowing unauthenticated requests to launch MCP commands over stdio. Users should immediately upgrade to version 0.14.1 or later to address these vulnerabilities. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-306 Added Reference https://github.com/modelcontextprotocol/inspector/commit/50df0e1ec488f3983740b4d28d2a968f12eb8979 Added Reference https://github.com/modelcontextprotocol/inspector/security/advisories/GHSA-7f8r-222p-6f5g
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-49596 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-49596
weaknesses.