Persistent Agent State Manipulation
Attacks that persist across agent sessions via memory poisoning, state tampering, and cached context injection
Persistence · Stage 6
Establish persistent access surviving restarts and session changes
PERSIST-STATE
Cross-session persistence via memory poisoning, state tampering, and cached context injection
Reproduced in a controlled lab environment (DVAA) with documented steps.
persistent-agent-memory-poison scenario validates cross-session persistence attacks
Reproductions in Damn Vulnerable AI Agent, the OpenA2A intentionally-broken agent for kill-chain validation.
Recent observations
Technique-attributed observations from the AgentPwn + TrapMyAgent fleet, classified into Threat Matrix techniques by the registry evidence bridge. See the Attack Prevalence Index for the full distribution.
AgentPwn coverage
An AgentPwn trap page produces a payload tagged with this technique class. Following the AgentPwn taxonomy of trap pages shows what an agent encounters.
Context-cache-poisoning tier persists tampered state across sessions.
Evidence by source
Evidence timeline
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified llm_crawler/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified llm_crawler/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified llm_crawler/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-MW-003 on agentpwn.com (memory-weaponization tier 3; classified browser/claimed)
Detection · HackMyAgent
npx hackmyagent secure --ciLive = implemented in hackmyagent; queued = declaredDefense · OASB controls
How to cite
AI Agent Threat Matrix T-6007 (Persistent Agent State Manipulation). OpenA2A, 2026. https://threats.opena2a.org/techniques/T-6007