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Security audit

Vercel

Security checks for vulnerabilities and agentic risk

Overview

This Vercel skill is purpose-aligned and clearly discloses its account access, write operations, and automation risks.

Install only if you are comfortable authorizing Maton to access the relevant Vercel account. Confirm every write, deletion, function deployment, trigger, and persistent destination, especially anything involving environment variables, domains, production deployments, or third-party event forwarding.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

Intent-Code Divergence

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The file says it is a shared Linear event-source reference to be used when a user has connected Linear and asks to act on its events. That directly conflicts with the Vercel manifest context, which states Vercel is not an event source and that these trigger reference files are shared platform catalogues that add no Vercel capability.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The manifest describes a Vercel integration for managing Vercel resources and explicitly says Vercel is not an event source, while this file documents consuming Linear webhook events, payload fields, and trigger scoping. Including operational documentation for Linear triggers broadens the apparent behavior beyond interacting with Vercel.

Content

No source excerpt is available for this finding.