OWASP Top 10 for 2026 Web Apps — What Changed
Access control still #1
Broken Object-Level Authorization (IDOR) in APIs remains the top finding — endpoints trusting client-supplied IDs without ownership checks. Fix pattern: resolve resources through the authenticated user's scope on every request, never trust IDs alone. Test with two accounts swapping IDs.
Injection evolves
Classic SQLi declines (ORMs help); prompt injection and template injection rise. Server-side template engines rendering user input, and LLM features consuming untrusted documents, are the new injection surfaces. Sanitize by context, validate outputs against sources.
Supply chain climbs
Dependency confusion, typosquatting, and compromised maintainer accounts make npm audit and lockfiles table stakes. Pin versions, verify checksums, run Socket.dev-style supply-chain scanning in CI, and keep a software bill of materials for enterprise clients.
Logging failures persist
Insufficient monitoring means breaches discovered months later via third parties. Centralize auth and payment logs, alert on anomaly patterns (credential stuffing waves, export spikes), and rehearse incident response quarterly — detection speed decides breach cost.
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Written by Security Consultant
Specialized engineering teams at Omnetra focus on writing high-performance code, ensuring API security, and optimizing layouts for client success.