- If the user specifies an invalid timeout in the request URL, the request will be aborted with an HTTP 400.

### Cluster Lifecycle

- kubeadm: fixed nil pointer dereference caused by a bug in url parsing ([#74454](https://github.com/kubernetes/kubernetes/pull/74454), [@bart0sh](https://github.com/bart0sh))

* Fix instance metadata service URL. ([#49081](https://github.com/kubernetes/kubernetes/pull/49081), [@brendandburns](https://github.com/brendandburns))

### CVE-2022-3172: Aggregated API server can cause clients to be redirected (SSRF)

A security issue was discovered in kube-apiserver that could allow an attacker controlled aggregated API server to redirect client traffic to any URL.  This could lead to the client performing unexpected actions as well as leaking the client's credentials to third parties. 

### CVE-2022-3172: Aggregated API server can cause clients to be redirected (SSRF)

A security issue was discovered in kube-apiserver that could allow an attacker controlled aggregated API server to redirect client traffic to any URL.  This could lead to the client performing unexpected actions as well as leaking the client's credentials to third parties. 

- Fixes a regression in kubectl and client-go discovery when configured with a server URL other than the root of a server. ([#117686](https://github.com/kubernetes/kubernetes/pull/117686), [@ardaguclu](https://github.com/ardaguclu)) [SIG API Machinery]

* kubeadm alpha certs command now skip missing files ([#85092](https://github.com/kubernetes/kubernetes/pull/85092), [@fabriziopandini](https://github.com/fabriziopandini))

- Kubeadm: when adding new control plane nodes with "kubeadm join", ensure that the etcd member addition is performed only if a given member URL does not already exist in the list of members. Similarly, on "kubeadm reset" only remove an etcd member if its ID exists. ([#127622](https://github.com/kubernetes/kubernetes/pull/127622), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]...

* fix parse devicePath issue on Azure Disk ([#74499](https://github.com/kubernetes/kubernetes/pull/74499), [@andyzhangx](https://github.com/andyzhangx))
* kubeadm: fixed nil pointer dereference caused by a bug in url parsing ([#74454](https://github.com/kubernetes/kubernetes/pull/74454), [@bart0sh](https://github.com/bart0sh))

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