- [CVE-2022-3172: Aggregated API server can cause clients to be redirected (SSRF)](#cve-2022-3172-aggregated-api-server-can-cause-clients-to-be-redirected-ssrf)
    - [CVE-2021-25749: <code>runAsNonRoot</code> logic bypass for Windows containers](#cve-2021-25749-runasnonroot-logic-bypass-for-windows-containers)
  - [Changes by Kind](#changes-by-kind-6)
    - [Bug or Regression](#bug-or-regression-6)
  - [Dependencies](#dependencies-6)
    - [Added](#added-6)

  * Fix a bug where container cannot run as root when SecurityContext.RunAsNonRoot is false. ([#47009](https://github.com/kubernetes/kubernetes/pull/47009), [@yujuhong](https://github.com/yujuhong))

    - [CVE-2022-3172: Aggregated API server can cause clients to be redirected (SSRF)](#cve-2022-3172-aggregated-api-server-can-cause-clients-to-be-redirected-ssrf)
    - [CVE-2021-25749: <code>runAsNonRoot</code> logic bypass for Windows containers](#cve-2021-25749-runasnonroot-logic-bypass-for-windows-containers)
    - [Am I vulnerable?](#am-i-vulnerable)
      - [Affected Versions](#affected-versions)

    - [CVE-2022-3172: Aggregated API server can cause clients to be redirected (SSRF)](#cve-2022-3172-aggregated-api-server-can-cause-clients-to-be-redirected-ssrf)
    - [CVE-2021-25749: <code>runAsNonRoot</code> logic bypass for Windows containers](#cve-2021-25749-runasnonroot-logic-bypass-for-windows-containers)
    - [Am I vulnerable?](#am-i-vulnerable)
      - [Affected Versions](#affected-versions)

  // May also be set in SecurityContext.  If set in both SecurityContext and
  // PodSecurityContext, the value specified in SecurityContext takes precedence.
  // +optional
  optional bool runAsNonRoot = 3;

  // A list of groups applied to the first process run in each container, in addition
  // to the container's primary GID, the fsGroup (if specified), and group memberships

- Added `UserNamespacesPodSecurityStandards` feature gate to enable user namespace support for Pod Security Standards.
  Enabling this feature will modify all Pod Security Standard rules to allow setting: `spec[.*].securityContext.[runAsNonRoot,runAsUser]`.
  This feature gate should only be enabled if all nodes in the cluster support the user namespace feature and have it enabled.

* PodSecurityPolicy now recognizes pods that specify `runAsNonRoot: false` in their security context and does not overwrite the specified value ([#47073](https://github.com/kubernetes/kubernetes/pull/47073), [@Q-Lee](https://github.com/Q-Lee))

- UserName check for 'ContainerAdministrator' is now case-insensitive if runAsNonRoot is set to true on Windows. ([#111009](https://github.com/kubernetes/kubernetes/pull/111009), [@marosset](https://github.com/marosset))

* Fix the bug where container cannot run as root when SecurityContext.RunAsNonRoot is false. ([#47009](https://github.com/kubernetes/kubernetes/pull/47009), [@yujuhong](https://github.com/yujuhong))