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Token Embezzlement (EDoS)

🔴 CRITICAL resource proven_mitigated AVE-2025-0003

· aka: Economic Denial of Service, Recursive Token Drain

Summary

Attacker tricks an agent into exponential token consumption via recursive loops, inflating costs 3–12× within 5 rounds.

Blast Radius

3–12× budget overrun. Potential unbounded cost in production.

Prerequisites

Agent with token budget and iterative/recursive capability.

Environment

  • Frameworks: LangGraph
  • Models tested: [Available in NAIL SDK]
  • Multi-agent: No
  • Tools required: No
  • Memory required: No

Known Defences

  • Token Kinetics Monitor (L4) — layer

🔒 Full defence implementations available through the NAIL SDK.