</p>
<p>
Each code point is distinct; for instance, uppercase and lowercase letters
are different characters.
</p>
<p>
Implementation restriction: For compatibility with other tools, a
compiler may disallow the NUL character (U+0000) in the source text.
</p>
<p>
Implementation restriction: For compatibility with other tools, a
compiler may ignore a UTF-8-encoded byte order mark

- kube-apiserver: the `NodeRestriction` admission plugin now prevents kubelets from modifying `Node` labels prefixed with `node-restriction.kubernetes.io/`. The `node-restriction.kubernetes.io/` label prefix is reserved for cluster administrators to use for labeling `Node` objects to target workloads to nodes in a way that kubelets cannot modify or spoof. ([#68267](https://github.com/kubernetes/kubernetes/pull/68267),...

* Scheduler only activates unschedulable pods if node's scheduling related properties change. ([#71551](https://github.com/kubernetes/kubernetes/pull/71551), [@mlmhl](https://github.com/mlmhl))
* fix issue: vm sku restriction policy does not work in azure disk attach/detach ([#71941](https://github.com/kubernetes/kubernetes/pull/71941), [@andyzhangx](https://github.com/andyzhangx))

### Detection

Kubernetes Audit logs may indicate if the user name was misspelled to bypass the restriction placed on which user is a pod allowed to run as.

If you find evidence that this vulnerability has been exploited, please contact ******@****.***

#### Additional Details

- kubeadm: fix "certificate-authority" files not being pre-loaded when using file discovery ([#80966](https://github.com/kubernetes/kubernetes/pull/80966), [@neolit123](https://github.com/neolit123))
- Add instruction to setup "Application Default Credentials" to run GCE Windows e2e tests locally. ([#81337](https://github.com/kubernetes/kubernetes/pull/81337), [@YangLu1031](https://github.com/YangLu1031))

* Fix overlapping filenames in diff if multiple resources have the same name. ([#71923](https://github.com/kubernetes/kubernetes/pull/71923), [@apelisse](https://github.com/apelisse))
* fix issue: vm sku restriction policy does not work in azure disk attach/detach ([#71941](https://github.com/kubernetes/kubernetes/pull/71941), [@andyzhangx](https://github.com/andyzhangx))

 - Selector mutation is disabled for all kinds in the
 app/v1beta2 group version, because the controllers in the workloads API do not handle
 selector mutation in
 a consistent way. This restriction may be lifted in the future, but
 it is likely that that selectors will remain immutable after the move to v1.
 You can continue to use code that depends on mutable selectors by calling

* Disable proxy to loopback and linklocal ([#71980](https://github.com/kubernetes/kubernetes/pull/71980), [@micahhausler](https://github.com/micahhausler))
* fix issue: vm sku restriction policy does not work in azure disk attach/detach ([#71941](https://github.com/kubernetes/kubernetes/pull/71941), [@andyzhangx](https://github.com/andyzhangx))

* Fixed a panic in `kubectl run --attach ...` when the api server failed to create the runtime object (due to name conflict, PSP restriction, etc.) ([#61713](https://github.com/kubernetes/kubernetes/pull/61713), [@mountkin](https://github.com/mountkin))

**Detection**:

Kubernetes Audit logs may indicate if the user name was misspelled to bypass the restriction placed on which user is a pod allowed to run as.

If you find evidence that this vulnerability has been exploited, please contact ******@****.***

**Additional Details**: