OWASP Top 10 for LLM Applications 2026 - What Changed?
What is the OWASP LLM Top 10? The OWASP Top 10 for LLM Applications is a security awareness and risk framework for applications that use large language models. The 2026 edition continues that work but significantly changes the ranking and scope of several categories. One important change is how OWASP approached the ranking. The 2026 project compared practitioner opinion with evidence from 7,714 real incidents , with 6,639 incidents containing enough information to classify. Practitioner voting still carried most of the weight, while incident data contributed the remaining quarter. Why this matters: OWASP found that what security practitioners fear and what appears in public incident data do not always match. Prompt Injection remained #1 despite not appearing in the incident-data top 10, while Misinformation moved upward because the evidence showed it occurring more frequently than practitioners expected. Source: OWASP Top 10 for LLM Applications 2026. 2026 ...