- 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), [@...

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

            // assert
            if (null == principal) {

*  (not any Contributor) assume the cost of any necessary servicing,   *
*  repair, or correction. This disclaimer of warranty constitutes an   *
*  essential part of this License. No use of any Covered Software is   *
*  authorized under this License except under this disclaimer.         *
*                                                                      *
************************************************************************

        final String authUrl;

        if (useV2Endpoint) {
            // v2.0 endpoint with MSAL4J (recommended)
            authUrl = getAuthority() + getTenant()
                    + "/oauth2/v2.0/authorize?response_type=code&scope=https://graph.microsoft.com/.default&response_mode=form_post&redirect_uri="
                    + URLEncoder.encode(getReplyUrl(request), Constants.UTF_8_CHARSET) + "&client_id=" + getClientId() + "&state=" + state

object by patching themselves with an OwnerReference to a cluster-scoped resource. If the OwnerReference resource does not exist or is subsequently deleted, the given node object will be deleted via garbage collection. By default, node users are authorized for create and patch requests but not delete requests against their node object. Since the NodeRestriction admission controller does not prevent patching OwnerReferences, a compromised node could leverage this vulnerability to delete and then recreate...

Kube-apiserver: Added support for disabling caching of authorization webhook decisions in the `--authorization-config` file. The new fields `cacheAuthorizedRequests` and `cacheUnauthorizedRequests` could be set to `false` to prevent caching for authorized or unauthorized requests. See the https://kubernetes.io/docs/reference/access-authn-authz/authorization/#using-configuration-file-for-authorization for more details. ([#129237](https://github.com/kubernetes/kubernetes/pull/129237), [@rfranzke](...