**Affected Versions**:

- kubelet v1.20 - v1.21
- kubelet v1.22.0 - v1.22.13
- kubelet v1.23.0 - v1.23.10
- kubelet v1.24.0 - v1.24.4

**How do I mitigate this vulnerability?**

There are no known mitigations to this vulnerability.

**Fixed Versions**:

- kubelet v1.22.14
- kubelet v1.23.11
- kubelet v1.24.5
- kubelet v1.25.0

**Affected Versions**:
  - kubelet <= v1.28.0
  - kubelet <= v1.27.4
  - kubelet <= v1.26.7
  - kubelet <= v1.25.12
  - kubelet <= v1.24.16

**Fixed Versions**:
  - kubelet v1.28.1
  - kubelet v1.27.5
  - kubelet v1.26.8
  - kubelet v1.25.13
  - kubelet v1.24.17

## Changelog since v1.14.3

### Other notable changes

* fix kubelet fail to delete orphaned pod directory when the kubelet's pods directory (default is "/var/lib/kubelet/pods") symbolically links to another disk device's directory ([#79094](https://github.com/kubernetes/kubernetes/pull/79094), [@gaorong](https://github.com/gaorong))

  // kubelet.  If the kubelet is configured to verify the apiserver's TLS credentials, it does not mean the
  // connection to the real kubelet is vulnerable to a man in the middle attack (e.g. an attacker could not intercept
  // the actual log data coming from the real kubelet).
  // +optional
  optional bool insecureSkipTLSVerifyBackend = 9;
}

	HostProbeSNATIPV6 = netip.MustParseAddr(env.RegisterStringVar("HOST_PROBE_SNAT_IPV6", DefaultHostProbeSNATIPV6, "").Get())
)

const (
	// to reliably identify kubelet healthprobes from inside the pod (versus standard kube-proxy traffic,
	// since the IP is normally the same), we SNAT identified host probes in the host netns to a fixed
	// APIPA/"link-local" IP.
	//

// The RuntimeClass is used to determine which container runtime is used to run
// all containers in a pod. RuntimeClasses are manually defined by a
// user or cluster provisioner, and referenced in the PodSpec. The Kubelet is
// responsible for resolving the RuntimeClassName reference before running the
// pod.  For more details, see
// https://kubernetes.io/docs/concepts/containers/runtime-class/
message RuntimeClass {

  // extension with the CA bit set.  The API server will reject objects that
  // contain duplicate certificates, or that use PEM block headers.
  //
  // Users of ClusterTrustBundles, including Kubelet, are free to reorder and
  // deduplicate certificate blocks in this file according to their own logic,
  // as well as to drop PEM block headers and inter-block data.
  optional string trustBundle = 2;

// The RuntimeClass is used to determine which container runtime is used to run
// all containers in a pod. RuntimeClasses are (currently) manually defined by a
// user or cluster provisioner, and referenced in the PodSpec. The Kubelet is
// responsible for resolving the RuntimeClassName reference before running the
// pod.  For more details, see
// https://git.k8s.io/enhancements/keps/sig-node/585-runtime-class
message RuntimeClass {

// The RuntimeClass is used to determine which container runtime is used to run
// all containers in a pod. RuntimeClasses are (currently) manually defined by a
// user or cluster provisioner, and referenced in the PodSpec. The Kubelet is
// responsible for resolving the RuntimeClassName reference before running the
// pod.  For more details, see
// https://git.k8s.io/enhancements/keps/sig-node/585-runtime-class
message RuntimeClass {

		// the healthcheck packet to a fixed IP if the packet is coming from a node-local process with a socket.
		//
		// We do this so we can exempt this traffic from ztunnel capture/proxy - otherwise both kube-proxy (legit)
		// and kubelet (skippable) traffic would have the same srcip once they got to the pod, and would be indistinguishable.

		// CLI: -t mangle -A ISTIO_PRERT -s 169.254.7.127 -p tcp -m tcp --dport <PROBEPORT> -j ACCEPT