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Security audit

Mintlify

Security checks for vulnerabilities and agentic risk

Overview

The Mintlify actions have clear approval controls, but setup executes unverified installers and the required CLI can silently install persistent agent skills.

Review the CLI installation before allowing setup, and use a verified release. Consider disabling its automatic skill synchronization before running commands. OOMOL will mediate your connected Mintlify access, and deployments require confirmation. The installer and hosted connector implementations are outside the supplied artifact and were not verified.

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
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied command executes code from Oomol, not Mintlify, and shows no Mintlify interaction or evidence that this installation supports the declared purpose. The downloaded script's contents and downstream effects are not supplied, so those effects cannot be assessed.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
97% confidence
Finding

Piping the HTTPS response directly into bash executes whatever code the installation endpoint supplies, without pinning or independently verifying the artifact. Compromise of the vendor's distribution infrastructure could therefore lead to local code execution and access to user-readable secrets; the legitimate dependency relationship and conditional setup reduce suspicion but do not remove this supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.

First-time setup executes remote installation scripts without a system-integrity warning.

Medium
Category
Output Handling
Confidence
92% confidence
Finding

The fallback instructs the agent to execute downloaded shell or PowerShell code without an explicit installation-approval step or independent integrity verification. Missing warning text alone is not the core vulnerability: the danger is running mutable remote code with the invoking user's privileges, although the missing-CLI condition limits exposure.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 78)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources