- In the course of admitting a single request, the ValidatingAdmissionPolicy plugin will perform no more than one authorization check per unique authorizer expression. All evaluations of identical authorizer expressions will produce the same decision. ([#116443](https://github.com/kubernetes/kubernetes/pull/116443), [@benluddy](https://github.com/benluddy)) [SIG API Machinery and Testing]

- kube-apiserver: Promoted `AuthorizeWithSelectors` feature to beta, which includes field and label selector information from requests in webhook authorization calls. Promoted `AuthorizeNodeWithSelectors` feature to beta, which changes node authorizer behavior to limit requests from node API clients, so that each Node can only get / list / watch its own Node API object, and can also only get / list / watch Pod API objects bound to that node. Clients using kubelet credentials to read other nodes...

adds an alpha AuthorizeNodeWithSelectors feature that makes the node authorizer limit requests from node API clients to get / list / watch its own Node API object, and to get / list / watch its own Pod API objects. Clients using kubelet credentials to read other nodes or unrelated pods must change their authentication credentials (recommended), adjust their usage, or grant broader read access independent of the node authorizer. ([#125571](https://github.com/kubernetes/kubernetes/pull/125571), [@...

    /**
     * Default constructor.
     */
    public FessApiAdminAction() {
        super();
    }

    /**
     * Determines whether the current request is authorized to access admin API endpoints.
     * This method validates the access token and checks if the associated permissions
     * allow admin access according to the Fess configuration.
     *

                .stream()
                .collect(Collectors.joining(" "));
    }

    /**
     * Determines whether the current request is authorized to access the API endpoint.
     * This default implementation returns false, requiring subclasses to override
     * and implement proper access control logic.
     *

                new TestStringSetGenerator() {

                  /**
                   * Returns a Multiset that throws an exception on any attempt to use a method not
                   * specifically authorized by the elementSet() or hashCode() docs.
                   */
                  @Override
                  protected Set<String> create(String[] elements) {

### 10.1 Witness Authentication
```java
public class WitnessSecurityManager {
    public void authenticateWitnessService(InetAddress witnessServer) throws SecurityException {
        // Verify witness service is authorized
        if (!isAuthorizedWitnessServer(witnessServer)) {
            throw new SecurityException("Unauthorized witness server: " + witnessServer);
        }
    }
    

        }
    }
    
    public void validateRemoteAccess(long remoteAddress, int length, int remoteKey) {
        // Validate that remote memory access is authorized
        // This would integrate with SMB3 encryption/signing
        if (!isAuthorizedAccess(remoteAddress, length, remoteKey)) {
            throw new SecurityException("Unauthorized RDMA remote access");
        }

FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition,...

            }
            if (status) {
                return new ActionResponseCredential(() -> {
                    throw new RequestLoggingFilter.RequestClientErrorException("Your request is not authorized.", "401 Unauthorized",
                            HttpServletResponse.SC_UNAUTHORIZED);
                });
            }

            // assert
            if (null == principal) {