- The alpha feature `ServiceAccountIssuerDiscovery` enables publishing OIDC discovery information and service account token verification keys at `/.well-known/openid-configuration` and `/openid/v1/jwks` endpoints by API servers configured to issue service account tokens. ([#80724](https://github.com/kubernetes/kubernetes/pull/80724), [@cceckman](https://github.com/cceckman)) [SIG API Machinery, Auth, Cluster Lifecycle and Testing]...

**Affected Versions**:
  - kubelet >= v1.8.0

**Fixed Versions**:
  - kubelet v1.28.4
  - kubelet v1.27.8
  - kubelet v1.26.11
  - kubelet v1.25.16

This vulnerability was reported by Tomer Peled @tomerpeled92"


**CVSS Rating:** High (7.2) [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)

## Changes by Kind

- HPA reaction to metric changes has been spend up by removing the scale up forbidden window. ([#66615](https://github.com/kubernetes/kubernetes/pull/66615), [@jbartosik](https://github.com/jbartosik))

### SIG AWS

":[{"key":"url","value":""},{"key":"auth_token","value":""}]},"policy_plugin":{"_":[{"key":"url","value":""},{"key":"auth_token","value":""},{"key":"enable_http2","value":"off"}]},"region":{"_":[{"key":"name","value":""}]},"scanner":{"_":[{"key":"speed","value":"default"},{"key":"idle_speed","value":""},{"key":"alert_excess_versions","value":"100"},{"key":"alert_excess_folders","value":"50000"},{"key":"delay","value":""},{"key":"max_wait","value":""},{"key":"cycle","value":""}]},"site":{"_":[{"k...

### Auth

- Fixed OpenID Connect (OIDC) token refresh when the client secret contains a special character. ([#76914](https://github.com/kubernetes/kubernetes/pull/76914), [@tsuna](https://github.com/tsuna))

* Fix third party APIResource reporting ([#29724](https://github.com/kubernetes/kubernetes/pull/29724), [@brendandburns](https://github.com/brendandburns))
* speed up RC scaler ([#30383](https://github.com/kubernetes/kubernetes/pull/30383), [@deads2k](https://github.com/deads2k))

**Affected Versions**:
  - kubelet >= v1.8.0

**Fixed Versions**:
  - kubelet v1.28.4
  - kubelet v1.27.8
  - kubelet v1.26.11
  - kubelet v1.25.16

This vulnerability was reported by Tomer Peled @tomerpeled92"


**CVSS Rating:** High (7.2) [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)

## Dependencies

### Added

  - Clone `kubernetes/kubernetes` in `update-vendor.sh` shallowly, instead of fetching all revisions
  - Speed up binpacking by reducing the number of PreFilter calls (call once per pod instead of #pods*#nodes times)
  - Speed up finding unneeded nodes by 5x+ in very large clusters by reducing the number of PreFilter calls
  - Expose `--max-nodes-total` as a metric

* API server authentication now caches successful bearer token authentication results for a few seconds. ([#50258](https://github.com/kubernetes/kubernetes/pull/50258), [@liggitt](https://github.com/liggitt))

**Affected Versions**:
  - kubelet >= v1.8.0

**Fixed Versions**:
  - kubelet v1.28.4
  - kubelet v1.27.8
  - kubelet v1.26.11
  - kubelet v1.25.16

This vulnerability was reported by Tomer Peled @tomerpeled92"


**CVSS Rating:** High (7.2) [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)

## Changes by Kind