Add Cedar Policy as CNCF Sandbox project

landscape.yml

@@ -1139,6 +1139,30 @@ landscape:
               accepted: '2024-08-23'
               clomonitor_name: cartography
               dev_stats_url: https://cartography.devstats.cncf.io/
+          - item:
+            name: Cedar
+            homepage_url: https://cedarpolicy.com
+            logo: cedar.svg
+            description: >-
+              Cedar is an open source authorization policy language that enables developers to express fine-grained permissions as easy-to-understand policies
+              enforced in their applications, and decouple access control from application logic. Cedar is designed to be ergonomic, fast, safe, and analyzable
+              using automated reasoning. Cedar's simple and intuitive syntax supports common authorization use-cases with readable policies, naturally expressing
+              concepts from role-based, attribute-based, and relation-based access control models. Cedar's policy structure enables authorization requests to be
+              decided quickly. Its policy validator uses optional typing to help policy writers avoid mistakes, but not get in their way. Cedar's design has been
+              finely balanced to allow for a sound, complete, and decidable logical encoding, which enables precise automated analysis of Cedar policies, e.g., to
+              ensure that policy refactoring preserves existing permissions. Cedar's language specification has been formally verified using a theorem prover to
+              satisfy key security properties like "deny trumps allow," and its implementation in Rust undergoes rigorous differential random testing against its
+              formal specification. By combining mathematical rigor with developer-friendly design, Cedar offers a practical approach to secure, maintainable
+              authorization for modern applications.
+            project: sandbox
+            repo_url: https://github.com/cedar-policy/cedar
+            crunchbase: https://www.crunchbase.com/organization/cloud-native-computing-foundation
+            additional_repos:
+              - repo_url: https://github.com/cedar-policy/cedar-access-control-for-k8s
+            extra:
+              lfx_slug: cedar
+              accepted: '2025-10-08'
+              clomonitor_name: cedar
           - item:
             name: Cerbos
             homepage_url: https://www.cerbos.dev/