The OWASP Top 10 remains the most referenced framework for web application security. But the threat landscape evolves, and so does the list. Here's what matters in 2026 — and what we're actually seeing in the field.
The Current Top 10 at a Glance
Broken Access Control
Still #1 — IDOR, privilege escalation, missing function-level checks
Cryptographic Failures
Weak algorithms, plaintext secrets, improper key management
Injection
SQL, NoSQL, OS command, LDAP — anywhere user input meets an interpreter
Insecure Design
Flawed business logic, missing threat modeling, inadequate controls
Security Misconfiguration
Default credentials, open cloud storage, verbose error messages
Vulnerable Components
Outdated libraries, unpatched frameworks, known CVEs in dependencies
A01: Broken Access Control — Still #1
This has held the top spot since 2021, and it's not going anywhere. In our audits, access control issues appear in over 80% of engagements.
User authenticates normally
Attacker creates a legitimate account or compromises a low-privilege one
Manipulates request parameters
Changes user IDs, resource paths, or API parameters in requests
Accesses unauthorized resources
Views other users' data, modifies records, or escalates privileges
Exfiltrates or modifies data
Downloads sensitive information or makes unauthorized changes at scale
What we see most often:
- IDOR (Insecure Direct Object References) in REST APIs
- Missing function-level access checks on admin endpoints
- JWT manipulation and token reuse across user contexts
- Path traversal in file upload/download features
🛑The #1 Finding
In our experience, broken access control is the most impactful vulnerability category. It's also the hardest to catch with automated tools because it requires understanding business logic and user roles.
A03: Injection — Evolving, Not Dying
Classic SQL injection is less common thanks to ORMs and parameterized queries. But injection has evolved:
Modern Injection Vectors
Server-Side Template Injection (SSTI)
Template engines like Jinja2, Twig, and Freemarker can execute arbitrary code when user input reaches template rendering.
NoSQL Injection
MongoDB query operators ($gt, $ne, $regex) injected through JSON parameters bypass authentication and leak data.
GraphQL Injection
Deeply nested queries, batched mutations, and introspection abuse create new injection surfaces.
LLM Prompt Injection
AI-integrated applications face a new class of injection where user input manipulates LLM behavior and bypasses guardrails.
A04: Insecure Design — The Hardest to Fix
This category captures vulnerabilities that exist because the application was designed without security in mind. No amount of patching fixes a fundamentally insecure design.
Examples we've found:
- Password reset flows that leak whether an email exists in the system
- Multi-step checkout processes with no server-side state validation
- Rate limiting only on the frontend, not enforced server-side
- "Security questions" that are publicly discoverable on social media
⚠️Design vs. Implementation
The distinction matters: an implementation bug can be patched. A design flaw often requires rearchitecting entire features. Catching these early in threat modeling saves orders of magnitude in remediation cost.
A05: Security Misconfiguration — The Low-Hanging Fruit
This is where AI-assisted auditing shines. Misconfigurations are pattern-based and testable at scale:
73%
Missing Security Headers
45%
Default Credentials
38%
Verbose Error Messages
29%
Open Cloud Storage
Common misconfigurations:
- CORS set to
*on authenticated APIs - Debug mode enabled in production
- Default admin credentials on management interfaces
- Unnecessary HTTP methods enabled (PUT, DELETE, TRACE)
- Missing
Content-Security-Policy,X-Frame-Options,Strict-Transport-Security
A08: Software and Data Integrity Failures
This relatively newer category covers supply chain and CI/CD risks:
- Pulling dependencies without integrity verification
- Auto-updating libraries without pinned versions
- Insecure deserialization of untrusted data
- CI/CD pipelines without signed commits or artifact verification
Compromise a dependency
Attacker publishes a malicious package with a similar name (typosquatting)
Victim installs it
Automated pipeline pulls the package without checksum verification
Malicious code executes
Backdoor runs during build or at runtime with full application permissions
What This Means for Your Security Strategy
Outdated Approach
- •Focus primarily on injection prevention
- •Scan for known CVEs only
- •Annual penetration test
- •Security as a final checkbox
Modern Approach
- •Prioritize access control and design review
- •Include supply chain and integrity checks
- •Continuous AI-assisted testing + periodic expert review
- •Security integrated into design and development
The Bottom Line
The OWASP Top 10 isn't a checklist — it's a priority guide. The categories at the top aren't there because they're the most technically complex. They're there because they cause the most real-world damage.
ℹ️Our Recommendation
Start with access control and authentication. Get those right, and you've addressed the two most impactful vulnerability categories. Then work down the list with a combination of automated scanning and expert review.
Want to know where your application stands against the OWASP Top 10? Request a security audit — our AI scans for all pattern-based issues while human experts test the design and logic flaws that tools miss.