OWASP has released an updated list of the top 10 security risks for Large Language Model (LLM) applications in 2026. Prompt Injection remains the primary threat, but Excessive Agency has seen the most significant rise. This reflects the evolving capabilities of AI agents, which are increasingly capable of performing actions beyond text generation, such as accessing emails, querying databases, executing code, and interacting with APIs. AI
IMPACT Highlights critical security vulnerabilities for AI agents, urging developers to address risks like excessive agency and prompt injection.
RANK_REASON Update to a security risk list for LLM applications.
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