authorization
Safeguard articles tagged "authorization" — guides, analysis, and best practices for software supply chain and application security.
36 articles
What Is RBAC (Role-Based Access Control)
RBAC grants permissions to roles, then assigns people to roles. Learn how this model simplifies access management, its core parts, and where it fits best.
AI Agent Tool Confused Deputy Problem in 2026
A senior engineer's take on the confused deputy problem in AI agent tool use, why it keeps reappearing in 2026, and the architectural patterns that actually fix it.
What is GraphQL Security
GraphQL's flexibility creates unique risks—excessive data exposure, DoS via nested queries, and broken field-level authorization. Here's how to defend it.
What Is OAuth
OAuth lets one app access your data in another without ever seeing your password. Learn how delegated access works, what tokens and scopes do, and why it matters.
What Is Authorization
Authorization decides what an already-verified identity is allowed to do. Learn how it differs from authentication, how permission checks work, and the models that power them.
Agent-to-Agent Security in Multi-Agent Systems
Multi-agent systems inherit every trust problem of single-agent systems and add a few more. Here is how the threat model actually shifts.
Privilege Escalation in Web Applications: Attacks and Defenses
Privilege escalation vulnerabilities let attackers elevate their access level within an application. This guide covers both vertical and horizontal escalation techniques, real-world patterns, and concrete defenses.
Authorization Vulnerabilities: Prevention and Best Practices
Authorization flaws let authenticated users access resources and perform actions beyond their intended permissions. Learn the most common authorization vulnerabilities and how to build robust access control systems.
What Is Access Control?
Access control decides who can reach a resource and what they can do with it. Learn the common models, how enforcement works, and why least privilege is the guiding rule.
Broken Access Control: The Number One Web Vulnerability and How to Fix It
Access control moved to the top of the OWASP Top 10 in 2021. Here is why it is so hard to get right and what a solid authorization architecture looks like.
AI Agent Tool-Scope Enforcement Patterns
Agents get tool lists, not tool boundaries. We walk through scoping patterns that actually hold when Claude 4 or GPT-5 picks the wrong function at runtime.
GraphQL API Security Best Practices
GraphQL gives clients extraordinary power over queries. That flexibility is also its biggest security risk. Here is how to lock it down without killing usability.
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