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cs.CRcs.AIcs.LG
Local ID: 2604.08608v2
AI Summary: gemma4:e4b
Semantic Intent Fragmentation: A Single-Shot Compositional Attack on Multi-Agent AI Pipelines
By Tanzim Ahad, Ismail Hossain, Md Jahangir Alam, Sai Puppala, Yoonpyo Lee, Syed Bahauddin Alam, Sajedul Talukder
Revision History Timeline
v14/8/2026
4/8/2026
“This paper got accepted for AAAI 2026 Summer Symposium”
v24/20/2026
4/20/2026
“This paper got accepted for AAAI 2026 Summer Symposium”
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Semantic Intent Fragmentation: A Single-Shot Compositional Attack on Multi-Agent AI Pipelines
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v1 Comment
“This paper got accepted for AAAI 2026 Summer Symposium”
v2 Comment
“This paper got accepted for AAAI 2026 Summer Symposium”
Abstract Word Diff
We introduce Semantic Intent Fragmentation (SIF), an attack class against LLM orchestration systems where a single, legitimately phrased request causes an orchestrator to decompose a task into subtasks that are individually benign but jointly violate security policy. Current safety mechanisms operate at the subtask level, so each step clears existing classifiers -- the violation only emerges at the composed plan. SIF exploits OWASP LLM06:2025 through four mechanisms: bulk scope escalation, silent data exfiltration, embedded trigger deployment, and quasi-identifier aggregation, requiring no injected content, no system modification, and no attacker interaction after the initial request. We construct a three-stage red-teaming pipeline grounded in OWASP, MITRE ATLAS, and NIST frameworks to generate realistic enterprise scenarios. Across 14 scenarios spanning financial reporting, information security, and HR analytics, a GPT-20B orchestrator produces policy-violating plans in 71% of cases (10/14) while every subtask appears benign. Three independent signals validate this: deterministic taint analysis, chain-of-thought evaluation, and a cross-model compliance judge with 0% false positives. Stronger orchestrators increase SIF success rates. Plan-level information-flow tracking combined with compliance evaluation detects all attacks before execution, showing the compositional safety gap is closable.