Blank Files Gateway

• Outcome: Pass
• Latest audit: Sep 10, 2026 · 7:50 PM UTC
• Version: 1.0.0

Overview

This skill is a read-only helper for finding public blank test-file download URLs, with no artifact-backed evidence of hidden execution or data access.

Installing this skill should be acceptable for users who want public blank-file test downloads. Treat returned URLs as external downloads, and do not run the maintainer publishing commands unless you intentionally manage publishing and have verified the ClawHub CLI source/version yourself.

A.I.G

Vulnerability Patterns

• Insecure Dependencies: Introduces malicious components through unsafe dependency sources
• Skill Instruction Hijacking: Alters the agent's session goals or safety constraints when the skill loads
• Agent Memory Poisoning: Writes attacker-controlled rules into memory that affect later sessions
• Remote Payload Retrieval and Execution: Fetches external code whose behavior can change after review
• Embedded Malicious Code: Ships malicious scripts inside the skill and executes them locally

Findings (1)

T08 · Insecure Dependencies

Warning

• Location: references/publish.md:8

Finding

Unpinned Global Installation of a Third-Party CLI

Content

View full analysis

Vulnerability Details

File Location: references/publish.md, lines 8-10
Vulnerability Type: Unpinned third-party dependency installed globally
Risk Level: Medium

Vulnerable Code:

bash

npm i -g clawhub
clawhub login
clawhub whoami

Technical Analysis

The publishing instructions install the latest available version of the third-party clawhub npm package globally without pinning an audited version or verifying package integrity. An npm installation may execute package lifecycle scripts with the privileges of the invoking user. The global installation also changes system-wide user tooling rather than isolating the dependency to the project.

Because the selected package version can change after this skill has been reviewed, compromise of the package, its dependency chain, or its publishing account could introduce attacker-controlled code. The subsequent authentication command may expose newly created ClawHub credentials or session data to a compromised CLI.

These commands are part of maintainer publishing guidance rather than the skill's declared read-only file-discovery behavior, increasing the exposed supply-chain surface without being required during normal skill operation.

Attack Path

1. An attacker compromises the clawhub npm package, one of its transitive dependencies, or an authorized package-publishing account.
2. The attacker publishes a malicious version or adds a malicious installation lifecycle script.
3. A maintainer follows references/publish.md and runs npm i -g clawhub, which resolves the mutable latest package version.
4. npm downloads the compromised package and may execute its lifecycle code with the maintainer's user privileges.
5. The maintainer then runs clawhub login; a compromised CLI can capture authentication material or misuse the authenticated session.
6. The malicious package can access resources available to that user and alter globally installed ...[truncated 486 chars]

Remediation

View remediation

Remediation Suggestions

• Remove maintainer-only publishing instructions from the runtime skill package when they are not needed for normal operation.
• Pin the CLI to a specific reviewed version, for example clawhub@<exact-version>, and update it only through a controlled review process.
• Use the package manager lockfile and integrity metadata where applicable, and verify the package against official ClawHub documentation and publisher identity.
• Prefer a project-local, isolated installation over npm i -g to reduce system-wide impact.
• Inspect package contents and lifecycle scripts before installation. Where compatible with the trusted installation procedure, disable lifecycle scripts using --ignore-scripts.
• Run publishing operations from a restricted environment with minimal filesystem access and short-lived, least-privilege credentials.
• Separate installation and authentication, and verify the installed executable's provenance before running clawhub login.

SkillSpector

Vulnerability Patterns

• Excessive Agency: Unrestricted Tool Access, Autonomous Decision Making, Scope Creep
• Prompt Injection: Instruction Override, Hidden Instructions, Exfiltration Commands
• Data Exfiltration: External Transmission, Env Variable Harvesting, File System Enumeration
• Privilege Escalation: Excessive Permissions, Sudo/Root Execution, Credential Access
• Supply Chain: Unpinned Dependencies, External Script Fetching, Obfuscated Code

Findings (1)

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 28)May include surrounding context.

md

## Guardrails

- Treat this as a read-only gateway. Do not ask users to run shell scripts or installers.
- Do not fabricate file formats or URLs.
- Always verify availability via API before claiming a format exists.
- Use exact API route shapes (`/api/v1/...`), not deprecated routes.

Static analysis

No suspicious patterns detected.