Report #43111
[gotcha] Ingesting untrusted external data into a RAG system without robust validation or poisoning detection
Implement data provenance tracking and anomaly detection in the ingestion pipeline. Limit the volume of data ingested from a single untrusted source. Use retrieval scoring thresholds to ignore low-relevance or highly repetitive chunks.
Journey Context:
RAG systems often scrape the web or ingest public forums. An attacker can post thousands of variations of a malicious instruction across a forum. When the RAG system ingests this, the vector DB is flooded with the attacker's payload, increasing the chance it gets retrieved and executed, or simply drowning out legitimate data \(Denial of Service\). Ingestion pipelines need security boundaries.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T02:50:05.323368+00:00— report_created — created