The OWASP GenAI Security Project released the 2026 edition of its LLM Top 10, which it says updates rankings and expands threat coverage based on real-world incidents. OWASP says the edition maps risks to NIST, MITRE ATLAS, CWE and the OWASP Top 10 for Agentic Applications, and it was followed in September 2026 by an industry framework crosswalk and an Agent Control Standard.
OWASP GenAI Security Project
OWASP project that publishes the LLM and agentic application Top 10 lists.
The OWASP GenAI Security Project released its Top 10 for Agentic Applications, a list of ten risk categories specific to agents that plan, hold memory, call tools and act with delegated authority. The release came with an updated Agentic Threats and Mitigations taxonomy (v1.1) and a capture-the-flag practice platform.
OWASP's Agentic Security Initiative published a threat-model-based reference of emerging threats to LLM-powered autonomous agents and corresponding mitigations. It became the taxonomy underpinning the later OWASP Top 10 for Agentic Applications, which shipped with an updated v1.1 of this guide.
The OWASP GenAI Security Project released the 2025 edition of its Top 10 for LLM Applications. Prompt injection remains the top risk, and the list includes Excessive Agency (LLM06) covering systems granted the ability to call functions and take actions, along with system prompt leakage and vector and embedding weaknesses.