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“Westworld” simulation — agentic threat model

8.6AIVSS 8.6 · High

Westworld is an open-source multi-agent simulation library presenting high risk of emergent, unpredictable multi-agent behaviors and cascading failures within simulated environments, though its real-world impact is limited by its nature as a local simulation tool unless integrated into production control loops.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 6.5AARS uplift 2.13Factor sum 6.1/10Threat ×1.0Mitigation ×1.0
Autonomy of Action
0.70
Goal-Driven Planning
0.80
Self-Modification
0.30
Dynamic Tool Use
0.20
Persistent Memory
0.60
Contextual Awareness
0.80
Dynamic Identity
0.20
Multi-Agent Interactions
1.00
Non-Determinism
0.80
Opacity & Reflexivity
0.70

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 — The listing does not specify which LLMs or foundation models are supported, or if the simulation relies on heuristic/RL agents. If LLMs are integrated, they are susceptible to prompt injection and alignment drift during multi-agent interactions.

L2 · Data Operations⚠ not certain from listing

Not certain from the listing — There is no mention of RAG, vector databases, or training data pipelines. However, poisoning the simulation's configuration data or environment state would directly compromise the optimization results.

L3 · Agent Frameworks✓ mapped

As a multi-agent simulation library, the orchestration code is highly critical. Vulnerabilities in how agent memory is managed, how state transitions are executed, or how simulation steps are scheduled could lead to memory corruption or denial of service.

L4 · Deployment & Infrastructure⚠ not certain from listing

Not certain from the listing — As an open-source library, deployment is entirely user-managed. Running untrusted simulation code without proper containerization or sandboxing poses a risk of local host compromise.

L5 · Evaluation & Observability⚠ not certain from listing

Not certain from the listing — While the library aims to 'optimize systems', it is unclear what built-in observability, logging, or guardrails exist to monitor and detect anomalous agent behaviors during simulation runs.

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

Not certain from the listing — There are no details regarding access controls, identity management, or compliance frameworks within this open-source simulation library.

L7 · Agent Ecosystem✓ mapped

This layer is highly relevant. The primary threat is agent-to-agent trust abuse and cascading failures. In a dense simulation, a single compromised or rogue agent could exploit interaction protocols to manipulate other agents, leading to systemic collapse of the simulated environment.

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

These scores are auto-generated from public information (the agent's own listing, docs, and repository) using the canonical OWASP AIVSS formula and the MAESTRO framework — an estimate for guidance, not a penetration test, audit, or certification. See the scoring methodology. Are you the vendor? Factual corrections are free.