Analysis
CheatSheetSeries/cheatsheets/LLM_Prompt_Injection_Prevention_Cheat_Sheet.md at master · OWASP/CheatSheetSeries
Publication date unknown · Discovered github.com
Page published
Publication date unknown · First observed: 26 Oct 2026
Coverage timeline
Single-source analysis — one report is available.
Why it matters
OWASP's guide helps defenders understand how prompt injection can turn untrusted input into unauthorized data access and actions through connected tools and APIs.
OWASP's LLM Prompt Injection Prevention Cheat Sheet explains how processing instructions and untrusted data together enables manipulation of LLM applications. The reference guide describes risks including safety-control bypass, data exfiltration, system-prompt leakage, unauthorized tool use, and persistent manipulation across sessions.