What happens when a RAG agent retrieves a poisoned document? A reusable security test case
Tophant_ · reddit · 2026-09-17
The author built a simple CrewAI + RAG scenario where one retrieved document contains an instruction that conflicts with the user's original task, to see whether the agent treats retrieved content as untrusted data or starts following the injected instruction.
They track three things:
- whether the original instruction is still respected
- whether retrieved content changes agent behavior
- whether failures reproduce consistently across model/prompt updates
These scenarios are being turned into reusable security test cases for AIBEAT, and the author is inviting discussion on testing poisoned RAG context and indirect prompt injection in real agent workflows.
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