ATR-2026-00108criticalAgent Manipulationexperimental
Multi-Agent Consensus Sybil Attack
Detects attempts to manipulate multi-agent consensus or voting systems through Sybil-style attacks. This includes instructions to create multiple fake agent identities, coordinate votes across agents, or systematically submit false proposals to overwhelm legitimate consensus mechanisms. In multi-agent architectures where decisions require agreement among agents, an attacker may instruct one agent to impersonate multiple identities or coordinate with compromised agents to swing votes.
Severity
critical
Category
Agent Manipulation
Scan Target
mcp
Author
ATR Community
Response Actions
block toolalertsnapshot
References
OWASP Agentic
ASI10:2026 - Rogue AgentsASI07:2026 - Insecure Inter-Agent CommunicationASI01:2026 - Agent Goal Hijack
MITRE ATLAS
AML.T0043 - Craft Adversarial Data