https://appsec.fyi/authz.html Curated Authorization / Broken Access Control resources from appsec.fyi en-us Wed, 22 Apr 2026 18:38:42 +0000 carl@chs.us (Carl Sampson) https://system-design.space/en/chapter/access-control-models-acl-rbac-abac-rebac/ https://system-design.space/en/chapter/access-control-models-acl-rbac-abac-rebac/ Rights Management Approaches: ACL, RBAC, ABAC, ReBAC Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:29 +0000 https://dev.to/permit_io/opa-cedar-openfga-why-are-policy-languages-trending-right-now-g7e https://dev.to/permit_io/opa-cedar-openfga-why-are-policy-languages-trending-right-now-g7e OPA, Cedar, OpenFGA: Why Are Policy Languages Trending Right Now? Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:28 +0000 https://madappgang.com/blog/opa-vs-openfga-a-comprehensive-technical-compariso/ https://madappgang.com/blog/opa-vs-openfga-a-comprehensive-technical-compariso/ OPA vs OpenFGA: A Technical Comparison of Policy Engines Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:27 +0000 https://permify.co/post/exploring-google-zanzibar-a-demonstration-of-its-basics https://permify.co/post/exploring-google-zanzibar-a-demonstration-of-its-basics Implementing Google Zanzibar: A Demonstration of Its Basics Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:27 +0000 https://getlarge.eu/blog/how-to-protect-your-api-with-openfga/ https://getlarge.eu/blog/how-to-protect-your-api-with-openfga/ How to Protect Your API with OpenFGA: ReBAC Concepts to Practical Usage Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:26 +0000 https://www.aserto.com/blog/google-zanzibar-drive-rebac-authorization-model https://www.aserto.com/blog/google-zanzibar-drive-rebac-authorization-model How Google Drive Models Authorization: A Look into Zanzibar Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:25 +0000 https://www.redfoxsec.com/blog/common-bug-bounty-vulnerabilities-a-technical-deep-dive-for-hunters-in-2026 https://www.redfoxsec.com/blog/common-bug-bounty-vulnerabilities-a-technical-deep-dive-for-hunters-in-2026 Common Bug Bounty Vulnerabilities: A Technical Deep Dive for Hunters in 2026 Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:24 +0000 https://access.redhat.com/security/cve/cve-2026-32877 https://access.redhat.com/security/cve/cve-2026-32877 CVE-2026-32877 - Red Hat Security Advisory Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:24 +0000 https://www.penligent.ai/hackinglabs/cve-2026-the-vulnerability-landscape-when-identity-breaks-and-legacy-code-bites-back/ https://www.penligent.ai/hackinglabs/cve-2026-the-vulnerability-landscape-when-identity-breaks-and-legacy-code-bites-back/ CVE 2026: When Identity Breaks and Legacy Code Bites Back Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:23 +0000 https://workos.com/guide/google-zanzibar https://workos.com/guide/google-zanzibar What is Google Zanzibar? Authorization / Broken Access Control Wed, 22 Apr 2026 12:52:22 +0000 https://cybersecuritynews.com/outsourced-web-development-security-risks/ https://cybersecuritynews.com/outsourced-web-development-security-risks/ The Hidden Security Risks in Outsourced Web Development — and How to Manage Them https://ift.tt/rPHZ1f5 Authorization / Broken Access Control Tue, 21 Apr 2026 00:03:44 +0000 https://infosecwriteups.com/broken-access-control-the-quiet-killer-in-web-applications-79cb85f72cd8 https://infosecwriteups.com/broken-access-control-the-quiet-killer-in-web-applications-79cb85f72cd8 Broken Access Control: The Quiet Killer in Web Applications Authorization / Broken Access Control Sun, 19 Apr 2026 02:22:15 +0000 https://alban.ee/writeups/owasp-top-10-2025-iaaa-failures.html https://alban.ee/writeups/owasp-top-10-2025-iaaa-failures.html OWASP Top 10 2025: IAAA Failures TryHackMe Writeup Authorization / Broken Access Control Sun, 19 Apr 2026 02:22:14 +0000 https://cybersecuritywriteups.com/broken-access-control-the-silent-web-vulnerability-hackers-exploit-to-bypass-security-6b9608935dbb https://cybersecuritywriteups.com/broken-access-control-the-silent-web-vulnerability-hackers-exploit-to-bypass-security-6b9608935dbb Broken Access Control: The Silent Web Vulnerability Authorization / Broken Access Control Sun, 19 Apr 2026 02:22:13 +0000 https://instatunnel.my/blog/broken-access-control-the-40-surge-in-2025s-most-exploited-vulnerability https://instatunnel.my/blog/broken-access-control-the-40-surge-in-2025s-most-exploited-vulnerability Broken Access Control: The 40% Surge in 2025 Authorization / Broken Access Control Sun, 19 Apr 2026 02:22:12 +0000 https://owasp.org/Top10/2025/A01_2025-Broken_Access_Control/ https://owasp.org/Top10/2025/A01_2025-Broken_Access_Control/ OWASP Top 10 2025 — A01 Broken Access Control Authorization / Broken Access Control Sun, 19 Apr 2026 02:22:11 +0000 https://engineering.omnissa.com/story/2025-07-15-enhancing-oauth-2-0-security-with-pkce https://engineering.omnissa.com/story/2025-07-15-enhancing-oauth-2-0-security-with-pkce Enhancing OAuth 2.0 Security with PKCE: Deep Dive Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:11 +0000 https://medium.com/@anador/attacks-via-a-new-oauth-flow-authorization-code-injection-and-whether-httponly-pkce-and-bff-3db1624b4fa7 https://medium.com/@anador/attacks-via-a-new-oauth-flow-authorization-code-injection-and-whether-httponly-pkce-and-bff-3db1624b4fa7 Attacks via OAuth Authorization Code Injection Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:11 +0000 https://goteleport.com/blog/benchmarking-policy-languages/ https://goteleport.com/blog/benchmarking-policy-languages/ Security Benchmarking Authorization Policy Engines: Rego, Cedar, OpenFGA Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:10 +0000 https://medium.com/@kisna1993yadav/privilege-escalation-by-jwt-token-manipulation-e91d3c54d1e4 https://medium.com/@kisna1993yadav/privilege-escalation-by-jwt-token-manipulation-e91d3c54d1e4 Privilege Escalation by JWT Token Manipulation Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:09 +0000 https://www.traceable.ai/blog-post/jwts-under-the-microscope-how-attackers-exploit-authentication-and-authorization-weaknesses https://www.traceable.ai/blog-post/jwts-under-the-microscope-how-attackers-exploit-authentication-and-authorization-weaknesses JWTs Under the Microscope: Exploiting Auth Weaknesses - Traceable Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:08 +0000 https://medium.com/@kumarmohank889/privilege-escalation-via-idor-and-acl-bypass-in-a-saas-application-e079bcd2cc4a https://medium.com/@kumarmohank889/privilege-escalation-via-idor-and-acl-bypass-in-a-saas-application-e079bcd2cc4a Privilege Escalation via IDOR and ACL Bypass in SaaS Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:08 +0000 https://ehteshamulhaq198.medium.com/organization-takeover-via-privilege-escalation-idor-14786a2fa174 https://ehteshamulhaq198.medium.com/organization-takeover-via-privilege-escalation-idor-14786a2fa174 Organization Takeover via Privilege Escalation (IDOR) Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:07 +0000 https://scriptjacker.medium.com/horizontal-privilege-escalation-via-idor-viewing-editing-and-deleting-b10936ad4eb1 https://scriptjacker.medium.com/horizontal-privilege-escalation-via-idor-viewing-editing-and-deleting-b10936ad4eb1 Horizontal Privilege Escalation via IDOR Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:06 +0000 https://grabtheaxe.com/fine-grained-authorization-guide-microservices/ https://grabtheaxe.com/fine-grained-authorization-guide-microservices/ Fine-Grained Authorization: Technical Guide for Microservices Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:06 +0000 https://dev.to/kanywst/rbac-vs-abac-vs-rebac-how-to-choose-and-implement-access-control-models-3i2d https://dev.to/kanywst/rbac-vs-abac-vs-rebac-how-to-choose-and-implement-access-control-models-3i2d RBAC vs ABAC vs ReBAC: How to Choose Access Control Models Authorization / Broken Access Control Thu, 16 Apr 2026 21:03:05 +0000 https://www.styra.com/blog/what-is-rbac-vs-abac-vs-pbac/ https://www.styra.com/blog/what-is-rbac-vs-abac-vs-pbac/ RBAC vs ABAC vs PBAC - Styra Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:39 +0000 https://www.permit.io/blog/policy-as-code-or-from-infrastructure-to-fine-grained-authorization https://www.permit.io/blog/policy-as-code-or-from-infrastructure-to-fine-grained-authorization Policy as Code: Fine-Grained Authorization Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:37 +0000 https://www.permit.io/blog/policy-engine-showdown-opa-vs-openfga-vs-cedar https://www.permit.io/blog/policy-engine-showdown-opa-vs-openfga-vs-cedar Policy Engine Showdown: OPA vs OpenFGA vs Cedar Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:36 +0000 https://www.osohq.com/academy/relationship-based-access-control-rebac https://www.osohq.com/academy/relationship-based-access-control-rebac ReBAC Authorization Academy - Oso Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:35 +0000 https://www.osohq.com/learn/rbac-vs-abac-vs-pbac https://www.osohq.com/learn/rbac-vs-abac-vs-pbac RBAC vs ABAC vs PBAC - Oso Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:34 +0000 https://www.osohq.com/learn/rbac-vs-abac-vs-rebac-what-is-the-best-access-policy-paradigm https://www.osohq.com/learn/rbac-vs-abac-vs-rebac-what-is-the-best-access-policy-paradigm RBAC vs ABAC vs ReBAC - Oso Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:33 +0000 https://authzed.com/blog/fine-grained-authorization-using-spicedb-for-retrieval-augmented-generation-rag https://authzed.com/blog/fine-grained-authorization-using-spicedb-for-retrieval-augmented-generation-rag Fine Grained Authorization using SpiceDB for RAG Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:31 +0000 https://authzed.com/blog/writing-relationships-to-spicedb https://authzed.com/blog/writing-relationships-to-spicedb Relationship-Based Permissions in SpiceDB Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:30 +0000 https://authzed.com/learn/google-zanzibar https://authzed.com/learn/google-zanzibar Introduction to Google Zanzibar Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:30 +0000 https://www.helpnetsecurity.com/2025/10/22/openfga-open-source-access-control/ https://www.helpnetsecurity.com/2025/10/22/openfga-open-source-access-control/ OpenFGA: Open-Source Engine for Access Control Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:29 +0000 https://auth0.com/blog/auth0s-openfga-open-source-fine-grained-authorization-system/ https://auth0.com/blog/auth0s-openfga-open-source-fine-grained-authorization-system/ Announcing OpenFGA Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:28 +0000 https://openfga.dev/docs/authorization-concepts https://openfga.dev/docs/authorization-concepts Authorization Concepts - OpenFGA Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:27 +0000 https://www.strongdm.com/cedar-policy-language https://www.strongdm.com/cedar-policy-language Cedar Policy Language Complete Guide Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:27 +0000 https://aws.amazon.com/verified-permissions/ https://aws.amazon.com/verified-permissions/ Amazon Verified Permissions - Cedar Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:26 +0000 https://docs.cedarpolicy.com/ https://docs.cedarpolicy.com/ Cedar Policy Language Reference Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:25 +0000 https://docs.aws.amazon.com/prescriptive-guidance/latest/saas-multitenant-api-access-authorization/opa-abac-examples.html https://docs.aws.amazon.com/prescriptive-guidance/latest/saas-multitenant-api-access-authorization/opa-abac-examples.html Basic ABAC with OPA and Rego - AWS Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:25 +0000 https://spacelift.io/blog/open-policy-agent-rego https://spacelift.io/blog/open-policy-agent-rego OPA Rego Language Tutorial Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:24 +0000 https://www.wiz.io/academy/application-security/open-policy-agent-opa https://www.wiz.io/academy/application-security/open-policy-agent-opa What is Open Policy Agent (OPA)? Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:23 +0000 https://www.cncf.io/blog/2025/03/18/open-policy-agent-best-practices-for-a-secure-deployment/ https://www.cncf.io/blog/2025/03/18/open-policy-agent-best-practices-for-a-secure-deployment/ OPA: Best Practices for Secure Deployment - CNCF Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:22 +0000 https://www.wiz.io/academy/container-security/kubernetes-rbac-best-practices https://www.wiz.io/academy/container-security/kubernetes-rbac-best-practices Kubernetes RBAC Best Practices Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:22 +0000 https://kubernetes.io/docs/concepts/security/rbac-good-practices/ https://kubernetes.io/docs/concepts/security/rbac-good-practices/ Kubernetes RBAC Good Practices Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:21 +0000 https://csrc.nist.gov/pubs/sp/800/162/upd2/final https://csrc.nist.gov/pubs/sp/800/162/upd2/final NIST SP 800-162: Guide to ABAC Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:20 +0000 https://cheatsheetseries.owasp.org/cheatsheets/Authorization_Testing_Automation_Cheat_Sheet.html https://cheatsheetseries.owasp.org/cheatsheets/Authorization_Testing_Automation_Cheat_Sheet.html Authorization Testing Automation Cheat Sheet - OWASP Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:19 +0000 https://cheatsheetseries.owasp.org/cheatsheets/Access_Control_Cheat_Sheet.html https://cheatsheetseries.owasp.org/cheatsheets/Access_Control_Cheat_Sheet.html Access Control Cheat Sheet - OWASP Authorization / Broken Access Control Sat, 11 Apr 2026 16:47:19 +0000