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FastAgency — agentic threat model

9.4AIVSS 9.4 · Critical

FastAgency is an open-source orchestrator framework that facilitates multi-agent deployments (via AutoGen/CrewAI) and rapid API integrations, creating a broad attack surface for tool misuse, insecure API execution, and cascading multi-agent failures.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 8.5AARS uplift 0.93Factor sum 6.2/10Threat ×1.0Mitigation ×1.0
Autonomy of Action
0.70
Goal-Driven Planning
0.80
Self-Modification
0.20
Dynamic Tool Use
0.80
Persistent Memory
0.50
Contextual Awareness
0.70
Dynamic Identity
0.30
Multi-Agent Interactions
0.90
Non-Determinism
0.70
Opacity & Reflexivity
0.60

Scored with the canonical OWASP AIVSS formula (AIVSS calculator reference); agentic risk factors estimated from the agent’s described capabilities.

MAESTRO 7-layer threat model

Per-layer threats for this agent. Layers tagged “not certain from listing” are general, caveated commentary where the public description didn’t pin that layer.

L1 · Foundation Models⚠ not certain from listing

Not certain from the listing — FastAgency is a framework supporting AutoGen/CrewAI and does not specify or bundle a particular foundation model, leaving model-level vulnerabilities dependent on the user's choice of LLM.

L2 · Data Operations⚠ not certain from listing

Not certain from the listing — The listing mentions API integration but does not detail vector stores, RAG pipelines, or data operations, making data-poisoning or exfiltration risks dependent on the final implementation.

L3 · Agent Frameworks✓ mapped

As an orchestration framework supporting AutoGen and CrewAI, FastAgency is highly exposed to framework-level threats. Its 'Seamless API Integration' of external OpenAPI specs with minimal code introduces significant risks of insecure tool integration, prompt injection-driven tool misuse, and unauthorized API execution.

L4 · Deployment & Infrastructure✓ mapped

FastAgency supports CLI, ConsoleUI, and MesopUI web interfaces. This introduces deployment risks such as container/host compromise via CLI execution, exposed web services, and insecure handling of API secrets during deployment tasks.

L5 · Evaluation & Observability⚠ not certain from listing

Not certain from the listing — The listing does not mention built-in evaluation, monitoring, logging, or guardrails, which may lead to observability blind spots in production multi-agent workflows.

L6 · Security & Compliance (cross-cutting)⚠ not certain from listing

Not certain from the listing — No explicit security controls, authentication, authorization, or compliance standards are mentioned in the directory listing.

L7 · Agent Ecosystem✓ mapped

FastAgency is explicitly designed for multi-agent workflows (supporting AutoGen and CrewAI). This creates a high exposure to agent-to-agent trust abuse, cascading failures across collaborating agents, and rogue agent interactions within the ecosystem.

MAESTRO — the 7-layer agentic threat-modeling framework (Cloud Security Alliance / Ken Huang).