**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

### API Change

**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

### API Change

* Fix a scalability issue where high rates of event writes degraded etcd performance. ([#64539](https://github.com/kubernetes/kubernetes/pull/64539), [@ccding](https://github.com/ccding))

   ([#123003](https://github.com/kubernetes/kubernetes/pull/123003), [@alexzielenski](https://github.com/alexzielenski))
- Fixed a non-recursive list returning "resource version too high" error when consistent listing from cache is enabled.
   ([#123674](https://github.com/kubernetes/kubernetes/pull/123674), [@serathius](https://github.com/serathius))

    - `apiserver_flowcontrol_demand_seats`: Observations, at the end of every nanosecond, of (the number of seats each priority level could use) / (nominal number of seats for that level)
    - `apiserver_flowcontrol_demand_seats_high_watermark`: High watermark, over last adjustment period, of demand_seats
    - `apiserver_flowcontrol_demand_seats_average`: Time-weighted average, over last adjustment period, of demand_seats

- Fixed a bug where CEL expressions in CRD validation rules would incorrectly compute a high estimated cost for functions that return strings, lists or maps.