canvas

Warn

Audited by Snyk on Aug 24, 2026

Risk Level: MEDIUM
Full Analysis

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

  • Third-party content exposure detected (medium risk: 0.30). Canvas’s required runtime workflow accepts outsider free text via the browser comment boxes and POSTs it to the canvas server at POST /feedback, which the agent then “reads the latest feedback” and uses for regeneration on wake.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

  • Potentially malicious external URL detected (high risk: 0.90). scripts/render_diagram.mjs dynamically imports and (if absent) runs "npm install agentic-mermaid" at runtime, which fetches and executes the remote agentic-mermaid package (see https://github.com/adewale/agentic-mermaid), so the skill can install and run external code during operation.

Issues (2)

W011
MEDIUM

Third-party content exposure detected (indirect prompt injection risk).

W012
MEDIUM

Unverifiable external dependency detected (runtime URL that controls agent).

Audit Metadata
Risk Level
MEDIUM
Analyzed
Aug 24, 2026, 04:24 AM
Issues
2
Security Audit — snyk — canvas