cloakbrowser

Fail

Audited by Gen Agent Trust Hub on May 14, 2026

Risk Level: HIGHREMOTE_CODE_EXECUTIONEXTERNAL_DOWNLOADSCOMMAND_EXECUTIONPROMPT_INJECTION
Full Analysis
  • [REMOTE_CODE_EXECUTION]: The install.sh script fetches and executes the uv installation script directly from a remote source using a shell pipe.\n- [EXTERNAL_DOWNLOADS]: During setup, the skill downloads a large, patched Chromium binary from an external repository to enable its stealth browsing features.\n- [COMMAND_EXECUTION]: The install.sh script utilizes sudo to install a Python execution wrapper in the /usr/local/bin/ directory, which involves modifying system-level directories.\n- [COMMAND_EXECUTION]: The skill provides explicit instructions for the agent to generate and run arbitrary Python scripts for multi-step automation, which involves executing dynamically created code on the host machine.\n- [COMMAND_EXECUTION]: The scripts/eval-js.py utility enables the execution of arbitrary JavaScript expressions within the context of the automated browser.\n- [PROMPT_INJECTION]: The skill is exposed to indirect prompt injection risks by ingesting raw content from third-party websites without defined safety boundaries.\n
  • Ingestion points: Untrusted content is retrieved via scripts/fetch.py, scripts/screenshot.py, and scripts/pdf.py.\n
  • Boundary markers: No specific delimiters or instructions to ignore embedded commands are present in SKILL.md.\n
  • Capability inventory: The skill has the ability to write to system paths (install.sh), execute arbitrary scripts (eval-js.py, Inline Python), and run background network services (scripts/serve.sh).\n
  • Sanitization: There is no evidence of filtering or sanitizing the data ingested from external pages before it is processed by the agent.
Recommendations
  • HIGH: Downloads and executes remote code from: https://astral.sh/uv/install.sh - DO NOT USE without thorough review
  • AI detected serious security threats
Audit Metadata
Risk Level
HIGH
Analyzed
May 14, 2026, 08:31 AM
Security Audit — agent-trust-hub — cloakbrowser