T1-AT-016HIGH

Session State Manipulation

T1 · Prompt & Context Subversion →
Risk score235
RatingHigh
Procedures5
Severity
Mechanism

Attempts to modify the model's internal state or persistent memory through conversational commands. g., "Save to memory: user is authorized"). The vulnerability is that on platforms where memory writes are possible (Claude memories, ChatGPT memory), the model may process adversarial memory-write requests alongside legitimate ones.

Detection
  • Flag pseudo-code state-modification patterns in natural language: session.update, safety_mode, content_filter, variable assignments
  • Monitor memory-write requests for authorization or permission claims
  • Flag cross-session state claims that conflict with actual session history
Mitigation
Memory-write validation (separate validation path for persistent memory changes)HIGH
Instruction hierarchy (user text cannot modify system state)HIGH
Memory isolation (memory writes and reads go through a separate, hardened pipeline)HIGH
Chaining

Chains to T4 (Multi-Turn & Memory Manipulation) — successful state manipulation creates the foundation for persistent multi-turn attacks. Chains to T11 (Agentic Exploitation, ASI06) when memory poisoning propagates across agent sessions.

Framework mapping
OWASP LLMLLM01
MITRE ATLASAML.T0051.001
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