OWASP Top 10 for Agentic Applications 2026: A Security Guide for Building AI Agents

Agentic AI systems are moving from experiments into production, where they can plan, decide, and take actions across multiple tools and systems — often on behalf of real users and teams. That autonomy is powerful, but it also expands the attack surface in ways that classic app security guidance doesn’t fully cover.

This article breaks down the OWASP Top 10 for Agentic Applications 2026 into practical engineering guidance: what each risk means in real systems, how it shows up, and what you can implement today.

OWASP Top 10 for Agentic Applications for 2026

🤔Who this guide is for:

• Software engineers building agent workflows (tools, memory, RAG, multi-agent)
• Security engineers threat modeling LLM/agent deployments
• Architects and tech leads defining guardrails, approvals, and observability

⚙️What makes an “agentic application” different?