cloudflare-email-service
Warn
Audited by Snyk on Aug 22, 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). Cloudflare Email Routing/Agents SDK runtime ingests outsider-authored email content at the Worker
email(message, env, ctx)handler viamessage.raw/message.headersand parses it (e.g.,PostalMime.parse(await email.getRaw())) into free text.
MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).
- Potentially malicious external URL detected (high risk: 0.90). The skill explicitly instructs runtime retrieval of authoritative docs (which can alter agent instructions) from https://developers.cloudflare.com/email-service/ and https://github.com/cloudflare/agents/tree/main/docs, so external content fetched at those URLs could directly control prompts.
Issues (2)
W011
MEDIUMThird-party content exposure detected (indirect prompt injection risk).
W012
MEDIUMUnverifiable external dependency detected (runtime URL that controls agent).
Audit Metadata