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Security: gate Anthropic-backed simulation analysis with auth and quotas #3397

Description

@MaxGhenis

Summary

policyengine-api exposes an unauthenticated Anthropic-backed simulation analysis endpoint.

Severity

High

Impact

Attackers can burn LLM quota and persist arbitrary analysis records by repeatedly calling the endpoint.

Affected code

  • policyengine_api/routes/simulation_analysis_routes.py:19-78
  • policyengine_api/services/ai_analysis_service.py:45-77

Details

/simulation-analysis accepts public requests, and AIAnalysisService immediately initializes an Anthropic client with ANTHROPIC_API_KEY and streams a response for new prompts.

Expected behavior

LLM-backed analysis should require auth, rate limits, and ideally per-user quotas or explicit feature gating.

Suggested remediation

  • Require authenticated callers
  • Add rate limiting / quota enforcement
  • Consider caching and internal-only generation paths for expensive prompts
  • Add tests proving unauthenticated requests are denied

Activity

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