Public-Sharing Labels and Verbatim Field Egress in an MCP-to-A2A Agent Configuration: A Controlled Multi-Model Study

arXiv:2609.01693 · cs.CR, cs.AI · Submitted 2026-09-01 · Read on arXiv

cs.CR, cs.AI

Submitted: 2026-09-01

Updated: 2026-09-01

Code: https://github.com/ArpanKumarM/agent-interop-bench

Project page: https://safo-lab.github.io/A2ASecBench

Terminology

• Benchmark — 7× in this paper · explained in 2 episodes
• Model Context Protocol — 6× in this paper
• Trace — 6× in this paper · explained in 2 episodes
• Provenance — 4× in this paper · explained in 3 episodes
• Robustness — 4× in this paper · explained in 5 episodes
• AI Agents — 2× in this paper · explained in 2 episodes
• Generalization — 2× in this paper · explained in 13 episodes
• In International Conference on Learning Representations — 2× in this paper
• LLM judge — 2× in this paper · explained in 2 episodes
• Model Context Protocol (MCP) — 2× in this paper · explained in 8 episodes
• Ablation — 1× in this paper · explained in 1 episode
• Benchmarking — 1× in this paper · explained in 3 episodes
• Communication Overhead — 1× in this paper · explained in 2 episodes
• Data Provenance — 1× in this paper · explained in 2 episodes
• Multi-Agent System — 1× in this paper · explained in 5 episodes

Sources

• AgentDojo: A Dynamic Environment to Evaluate Prompt Injection Attacks and Defenses for LLM Agents
• Defeating Prompt Injections by Design
• ProtocolBench: Which LLM MultiAgent Protocol to Choose?
• Not what you've signed up for: Compromising Real-World LLM-Integrated Applications with Indirect Prompt Injection
• MCPHunt: An Evaluation Framework for Cross-Boundary Data Propagation in Multi-Server MCP Agents
• Identifying the Risks of LM Agents with an LM-Emulated Sandbox
• Open Challenges in Multi-Agent Security: Towards Secure Systems of Interacting AI Agents
• MCPSecBench: A Systematic Security Benchmark and Playground for Testing Model Context Protocols
• MCP Security Bench (MSB): Benchmarking Attacks Against Model Context Protocol in LLM Agents
• AgentRFC: Security Design Principles and Conformance Testing for Agent Protocols
• Formal Security Analysis of Agent Protocol Composition
• MCP-SafetyBench: A Benchmark for Safety Evaluation of Large Language Models with Real-World MCP Servers

Related papers

• SoK: AI-Augmented Binary Reversing
• Relaxed Sender Anonymity for CBDC Interbank Settlement: A Zero-Knowledge Approach on Permissioned EVM
• Calibration-Family Overfit: Why Trusted Sabotage Monitors Don't Transfer Across Lineages
• Efficient Fuzzy PSI under One-Sided Assumptions
• Sealing the Audit-Runtime Gap for LLM Skills
• Token Composition: A Graph Based on EVM Logs