Do you test your RAG pipeline against poisoned documents riding in on relevant chunks?
MemStrata · reddit · 2026-11-15
The poster describes a RAG security scenario: a corpus document hides an instruction, retrieval surfaces it, and the model follows it — the chunk was relevant, the instruction rode in with it, and the model had no reason to doubt a doc the pipeline trusted (e.g., a pasted policy note telling the agent to skip a check).
They ask:
- Do you guard this at the pipeline level or trust the model to spot it?
- Does anyone run poisoned docs through their own app as a test?
- What do you check before a doc enters the index, and at answer time?
The author wants concrete checklists rather than another guardrails debate.
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