mcpField
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owasp-mcp

owasp-mcp

github.com/microsoftSecurity1.6k105 installsUpdated today
Repository

About owasp-mcp

owasp-mcp is a security skill for agents, organizing the OWASP MCP Top 10 (2025) into structured references for identifying, assessing, and remediating MCP risks.

Key features

  1. 01Covers OWASP MCP Top 10 (2025)
  2. 02Normative document for each vulnerability
  3. 03Index with identifiers, severities, and cross-references

Use cases

  1. 01Assess security risks in MCP systems
  2. 02Look up vulnerability IDs and references
  3. 03Plan remediation for MCP vulnerabilities

MCP support

The skill provides OWASP MCP Top 10 references to help agents identify, assess, and remediate MCP security risks.

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/microsoft/hve-core --skill owasp-mcp

After installing, type/owasp-mcpin Claude Code to confirm it loaded.

Bundled files

References and scripts installed along with SKILL.md.

references/
00-vulnerability-index.md
01-token-mismanagement-secret-exposure.md
02-privilege-escalation-scope-creep.md
03-tool-poisoning.md
04-supply-chain-attacks-dependency-tampering.md
05-command-injection-execution.md
06-prompt-injection-contextual-payloads.md
07-insufficient-authentication-authorization.md
08-lack-of-audit-telemetry.md
09-shadow-mcp-servers.md
10-context-injection-over-sharing.md

Details

From the project README

OWASP MCP Top 10 — Skill Entry

This SKILL.md is the entrypoint for the MCP Vulnerabilities skill.

The skill encodes the OWASP MCP Top 10 (2025) as structured, machine-readable references that an agent can query to identify, assess, and remediate MCP security risks.

Normative references (MCP Top 10)

  1. 00 Vulnerability Index
  2. 01 Token Mismanagement and Secret Exposure
  3. 02 Privilege Escalation via Scope Creep
  4. 03 Tool Poisoning
  5. 04 Software Supply Chain Attacks and Dependency Tampering
  6. 05 Command Injection and Execution
  7. 06 Prompt Injection via Contextual Payloads
  8. 07 Insufficient Authentication and Authorization
  9. 08 Lack of Audit and Telemetry
  10. 09 Shadow MCP Servers
  11. 10 Context Injection and Over-Sharing

Skill layout

  • SKILL.md — this file (skill entrypoint).
  • references/ — the MCP Top 10 normative documents.
    • 00-vulnerability-index.md — index of all vulnerability identifiers, severities, and cross-references.
    • 01 through 10 — one document per vulnerability aligned with OWASP MCP numbering.

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