#### Audit Logging
* [alpha] Advanced Auditing enhances the Kubernetes API [audit logging](https://kubernetes.io/docs/tasks/debug/debug-cluster/audit/#log-backend) capabilities through a customizable policy, pluggable audit backends, and richer audit data.

#### Encryption at Rest

* The kube-apiserver [basic audit log](https://kubernetes.io/docs/admin/audit/) can be enabled in GCE by exporting the environment variable `ENABLE_APISERVER_BASIC_AUDIT=true` before running `cluster/kube-up.sh`. This will log to `/var/log/kube-apiserver-audit.log` and use the same `logrotate` settings as `/var/log/kube-apiserver.log`. ([#41211](https://github.com/kubernetes/kubernetes/pull/41211),...

- Audit events for API requests to deprecated API versions now include a `"k8s.io/deprecated": "true"` audit annotation. If a target removal release is identified, the audit event includes a `"k8s.io/removal-release": "<majorVersion>.<minorVersion>"` audit annotation as well. ([#92842](https://github.com/kubernetes/kubernetes/pull/92842), [@liggitt](https://github.com/liggitt))...

	var dctx context.Context
	dctx, z.decommissionCancelers[idx] = context.WithCancel(GlobalContext)
	z.poolMetaMutex.Unlock()

	// Generate an empty request info so it can be directly modified later by audit
	dctx = logger.SetReqInfo(dctx, &logger.ReqInfo{})

	if err := z.decommissionInBackground(dctx, idx); err != nil {
		decomLogIf(GlobalContext, err)
		decomLogIf(GlobalContext, z.DecommissionFailed(dctx, idx))

- Kube-apiserver: `--audit-log-version` and `--audit-webhook-version` now only support the default value of `audit.k8s.io/v1`. The v1alpha1 and v1beta1 audit log versions, deprecated since 1.13, have been removed. ([#108092](https://github.com/kubernetes/kubernetes/pull/108092), [@carlory](https://github.com/carlory))

- Audit events for API requests to deprecated API versions now include a `"k8s.io/deprecated": "true"` audit annotation. If a target removal release is identified, the audit event includes a `"k8s.io/removal-release": "<majorVersion>.<minorVersion>"` audit annotation as well. ([#92842](https://github.com/kubernetes/kubernetes/pull/92842), [@liggitt](https://github.com/liggitt))...

## Urgent Upgrade Notes 

### (No, really, you MUST read this before you upgrade)

	if err != nil {
		apiErr := errorCodes.ToAPIErr(ErrInvalidArgument)
		apiErr.Description = err.Error()
		writeErrorResponse(ctx, w, apiErr, r.URL)
		return
	}

	// Audit log tags.
	reqInfo := logger.GetReqInfo(ctx)
	reqInfo.SetTags("retention", config.String())

	configData, err := xml.Marshal(config)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)

  - 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)

- `kube-apiserver` added:
  - `alpha` support (guarded by the `ServiceAccountTokenJTI` feature gate) for adding a `jti` (JWT ID) claim to service account tokens it issues, adding an `authentication.kubernetes.io/credential-id` audit annotation in audit logs when the tokens are issued, and `authentication.kubernetes.io/credential-id` entry in the extra user info when the token is used to authenticate.