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arxiv_agent_systems_research · Nov 4, 2026 · paper

Source brief

SPILLWAY: Separating Target Admission from Sanitization to Defend Tool-Using Agents against Prompt Injection

arxiv.orgNov 4, 2026
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In brief

Tool-using agents act on email, files, and payments, so an instruction hidden in a web page or a shared document can make an agent send data or money to an attacker. Many runtime defenses put a language model on the decision that lets an action through, so the decision depends on

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SPILLWAY: Separating Target Admission from Sanitization to Defend Tool-Using Agents against Prompt Injection

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