9.6
CRITICAL CVSS 3.1
CVE-2025-6514
OS command injection in mcp-remote when connecting to untrusted MCP servers
Description

mcp-remote is exposed to OS command injection when connecting to untrusted MCP servers due to crafted input from the authorization_endpoint response URL

INFO

Published Date :

July 9, 2025, 1:15 p.m.

Last Modified :

April 15, 2026, 12:35 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2025-6514 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

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL [email protected]
Solution
Prevent OS command injection by validating input from authorization_endpoint URLs.
  • Sanitize all inputs from authorization_endpoint.
  • Validate the URL for the authorization endpoint.
  • Update the mcp-remote library to the latest version.
Public PoC/Exploit Available at Github

CVE-2025-6514 has a 93 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-6514 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

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).

adversarial security testing for MCP servers and agentic tool surfaces.​ built in rust.

Rust

Updated: 1 day, 12 hours ago
1 stars 0 fork 0 watcher
Born at : May 9, 2026, 12:22 a.m. This repo has been linked 1 different CVEs too.

Awesome Agentic MCP Security List

awesome awesome-list awesome-lists awesome-resources

Updated: 2 days, 10 hours ago
3 stars 1 fork 1 watcher
Born at : May 5, 2026, 6:49 p.m. This repo has been linked 2 different CVEs too.

MCP-BOM: a reproducible attack-surface benchmark for Model Context Protocol servers — NeurIPS 2026 ED submission

Python Makefile

Updated: 1 week, 1 day ago
0 stars 0 fork 0 watcher
Born at : April 30, 2026, 3:26 p.m. This repo has been linked 2 different CVEs too.

Paste your AGENTS.md, Cursor rules, Codex settings, MCP config, or other AI coding-agent configuration and get a plain-English security report in seconds. AgentGuard checks for 134 risky misconfiguration patterns, including the lethal trifecta, hardcoded secrets, unsafe shell and network access, webhook exfiltration, prompt leaks, cloud metadata SS

TypeScript CSS JavaScript

Updated: 1 day, 20 hours ago
0 stars 0 fork 0 watcher
Born at : April 28, 2026, 12:08 a.m. This repo has been linked 3 different CVEs too.

purplegate — Red/blue-team CI gate for agentic-AI apps. Prompt-injection, secrets, SAST, deps, IaC/RLS, workflow injection, MCP checks. One signed GitHub Action, mapped to OWASP LLM Top 10 v2025 + MITRE ATLAS.

agentic-ai ai-security ci-cd devsecops github-action llm-security mitre-atlas owasp owasp-llm-top-10 prompt-injection prompt-injection-detection sa sarif security supply-chain-security

Dockerfile Python

Updated: 2 weeks ago
0 stars 0 fork 0 watcher
Born at : April 24, 2026, 5 p.m. This repo has been linked 5 different CVEs too.

Security gateway for MCP traffic. 5 built-in rules block prompt injection, credential leakage, path traversal, cross-repo exfiltration, and destructive commands. One pip install, zero config.

mcp security python proxy claude ai-agents prompt-injection self-hosted model-context-protocol llm-security ai-security cursor security-tools path-traversal credential-leakage

Python

Updated: 2 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : April 21, 2026, 11:54 a.m. This repo has been linked 12 different CVEs too.

Audit Claude Code plugins and MCP servers for security risks before installing. Detects exfiltration, secret reading, hidden execution, obfuscation, and supply chain attacks.

JavaScript Shell

Updated: 2 weeks, 1 day ago
1 stars 0 fork 0 watcher
Born at : April 21, 2026, 5:57 a.m. This repo has been linked 1 different CVEs too.

None

Dockerfile Python

Updated: 2 weeks, 6 days ago
0 stars 0 fork 0 watcher
Born at : April 20, 2026, 5:43 p.m. This repo has been linked 1 different CVEs too.

MCP Audit Pro - Professional MCP Server Security Audits

Shell Python HTML JavaScript

Updated: 2 weeks, 6 days ago
0 stars 0 fork 0 watcher
Born at : April 20, 2026, 5:42 p.m. This repo has been linked 1 different CVEs too.

Cursor + Claude plugin for AAAA-Nexus MCP: 7 skills for UEP governance, RatchetGate / MCP trust boundary, Vanguard on-chain, Aegis proxy, evidence chains. BSL 1.1.

Python

Updated: 2 weeks, 6 days ago
0 stars 0 fork 0 watcher
Born at : April 20, 2026, 2:10 p.m. This repo has been linked 1 different CVEs too.

The most comprehensive LLM + MCP security guide i.e. OWASP aligned, real CVEs, actionable checklists

ai-security claude cybersecurity generative-ai infosec jailbreak langchain llm-security mcp-security openai owasp prompt-injection red-teaming

Updated: 3 weeks ago
2 stars 0 fork 0 watcher
Born at : April 18, 2026, 6:37 p.m. This repo has been linked 6 different CVEs too.

Hybrid classical + post-quantum (NIST FIPS 204 ML-DSA-65) digital receipts for AI agent decisions. First production MCP server with offline-verifiable post-quantum signing.

ai-agents ai-safety cnsa-2 cryptographic-receipts cryptography crystals-dilithium ed25519 eu-ai-act fips-204 mcp ml-dsa-65 model-context-protocol owasp-asi post-quantum-cryptography prompt-injection-defense python responsible-ai agentic-diffusion cve-2026-25253 trustatom

Python

Updated: 3 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : April 18, 2026, 2:30 a.m. This repo has been linked 7 different CVEs too.

Autonomous Sovereign System: Atomadic Development Environment.

Python JavaScript Jupyter Notebook Kotlin Rust Swift TypeScript HTML Procfile Shell

Updated: 2 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : April 17, 2026, 12:09 a.m. This repo has been linked 1 different CVEs too.

A practitioner-focused reference for AI/ML security — attacks, tools, research, and defenses. Covers offensive AI, securing AI systems, AI-assisted security operations, and governance.

Updated: 4 weeks ago
0 stars 0 fork 0 watcher
Born at : April 12, 2026, 4:30 p.m. This repo has been linked 28 different CVEs too.

Enterprise integration patterns: idempotent event processing, saga orchestration, transactional outbox, and webhook validation for reliable system-of-record sync

crm enterprise-architecture enterprise-integration event-driven integration-patterns salesforce workflow-automation agentic-ai cloud-integration data-integration fastapi idempotency kafka mcp-security microservices oracle python saga-pattern state-machine transactional-outbox

Python

Updated: 2 weeks, 2 days ago
0 stars 0 fork 0 watcher
Born at : April 10, 2026, 7:27 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-6514 vulnerability anywhere in the article.

  • CybersecurityNews
MEDUSA Security Testing Tool With 74 Scanners and 180+ AI Agent Security Rules

MEDUSA, an AI-first Static Application Security Testing (SAST) tool boasting 74 specialized scanners and over 180 AI agent security rules. This open-source CLI scanner targets modern development chall ... Read more

Published Date: Jan 27, 2026 (3 months, 1 week ago)
  • The Hacker News
[Webinar] Securing Agentic AI: From MCPs and Tool Access to Shadow API Key Sprawl

Jan 13, 2026The Hacker NewsArtificial Intelligence / Automation Security AI agents are no longer just writing code. They are executing it. Tools like Copilot, Claude Code, and Codex can now build, t ... Read more

Published Date: Jan 13, 2026 (3 months, 3 weeks ago)
  • CybersecurityNews
Cloudflare Launches MCP Server Portals – A Unified Gateway to All MCP Servers

Cloudflare today launched MCP Server Portals in open beta, a groundbreaking capability designed to centralize, secure, and observe all Model Context Protocol (MCP) connections in an organization. By r ... Read more

Published Date: Aug 28, 2025 (8 months, 1 week ago)
  • The Cloudflare Blog
Securing the AI Revolution: Introducing Cloudflare MCP Server Portals

Securing the AI Revolution: Introducing Cloudflare MCP Server Portals2025-08-266 min read Securing the AI Revolution: Introducing Cloudflare MCP Server Portals Large Language Models (LLMs) are rapidly ... Read more

Published Date: Aug 26, 2025 (8 months, 2 weeks ago)
  • The Hacker News
Critical mcp-remote Vulnerability Enables Remote Code Execution, Impacting 437,000+ Downloads

Cybersecurity researchers have discovered a critical vulnerability in the open-source mcp-remote project that could result in the execution of arbitrary operating system (OS) commands. The vulnerabili ... Read more

Published Date: Jul 10, 2025 (10 months ago)
  • CybersecurityNews
Critical mcp-remote Vulnerability Exposes LLM Clients to Remote Code Execution Attacks

A critical vulnerability CVE-2025-6514 with a CVSS score of 9.6 affecting the mcp-remote project allows attackers to achieve arbitrary operating system command execution on machines running mcp-remote ... Read more

Published Date: Jul 10, 2025 (10 months ago)

The following table lists the changes that have been made to the CVE-2025-6514 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.

  • New CVE Received by [email protected]

    Jul. 09, 2025

    Action Type Old Value New Value
    Added Description mcp-remote is exposed to OS command injection when connecting to untrusted MCP servers due to crafted input from the authorization_endpoint response URL
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
    Added CWE CWE-78
    Added Reference https://github.com/geelen/mcp-remote/commit/607b226a356cb61a239ffaba2fb3db1c9dea4bac
    Added Reference https://jfrog.com/blog/2025-6514-critical-mcp-remote-rce-vulnerability
    Added Reference https://research.jfrog.com/vulnerabilities/mcp-remote-command-injection-rce-jfsa-2025-001290844/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.