- The EndpointSlice controller now waits for EndpointSlice and Node caches to be synced before starting. ([#94086](https://github.com/kubernetes/kubernetes/pull/94086), [@robscott](https://github.com/robscott)) [SIG Apps and Network]
- The audit event sourceIPs list will now always end with the IP that sent the request directly to the API server. ([#87167](https://github.com/kubernetes/kubernetes/pull/87167), [@tallclair](https://github.com/tallclair)) [SIG API Machinery and Auth]

  - kube-apiserver v1.25.4
  - kube-apiserver v1.24.8
  - kube-apiserver v1.23.14
  - kube-apiserver v1.22.16

This vulnerability was reported by Richard Turnbull of NCC Group as part of the Kubernetes Audit


**CVSS Rating:** Medium (6.5) [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N](https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

- X.509 client certificate authentication to the kube-apiserver now produces credential IDs (derived from the certificate's signature) , for use in audit logging. ([#125634](https://github.com/kubernetes/kubernetes/pull/125634), [@ahmedtd](https://github.com/ahmedtd)) [SIG API Machinery, Auth and Testing]

### Feature

- The audit event sourceIPs list will now always end with the IP that sent the request directly to the API server. ([#87167](https://github.com/kubernetes/kubernetes/pull/87167), [@tallclair](https://github.com/tallclair)) [SIG API Machinery and Auth]

- Adds apiserver.latency.k8s.io/authentication annotation to the audit log to record the time spent authenticating slow requests.

	opts.sessionPolicy = sp

	return ctx, cred, opts, createReq, targetUser, APIError{}
}

// setReqInfoPolicyName will set the given policyName as a tag on the context's request info,
// so that it appears in audit logs.
func setReqInfoPolicyName(ctx context.Context, policyName string) {
	reqInfo := logger.GetReqInfo(ctx)
	reqInfo.SetTags("policyName", policyName)

- Updated an audit annotation key used by the `…/serviceaccounts/<name>/token` resource handler.

* Audit events now log the existence and patch of mutating webhooks.  ([#77824](https://github.com/kubernetes/kubernetes/pull/77824), [@roycaihw](https://github.com/roycaihw))

- Added apiserver.latency.k8s.io/apf-queue-wait annotation to the audit log
  to record the time spent waiting in APF queue. ([#123919](https://github.com/kubernetes/kubernetes/pull/123919), [@hakuna-matatah](https://github.com/hakuna-matatah))

- API Server tracing now includes the latency of authorization, priorityandfairness, impersonation, audit, and authentication filters. ([#113217](https://github.com/kubernetes/kubernetes/pull/113217), [@dashpole](https://github.com/dashpole))