# Flatcar Container Linux stable-4757.2.1

> Provisioning & Runtime · 2026-09-29

A security-focused maintenance release with Linux and OpenSSL updates. It also fixes an installer defect and enables additional amd64 debugging support.

## Action needed
- **[security · critical]** `Linux` security updates
  - `Linux` is updated with fixes associated with `CVE-2026-100079`, `CVE-2026-100078`, and `CVE-2026-100075`.
- **[security · high]** `OpenSSL` security updates
  - `OpenSSL` is updated with fixes associated with `CVE-2026-35191`, `CVE-2026-54875`, `CVE-2026-72897`, `CVE-2026-75804`, `CVE-2026-75805`, `CVE-2026-75806`, `CVE-2026-54872`, `CVE-2026-77696`, `CVE-2026-84782`, `CVE-2026-84784`, and `CVE-2026-35189`.

## Other recorded changes
- 4 (value_changed 2, default_changed 1, defect_corrected 1)

[Full analysis](https://ratatosk.io/en/releases/flatcar/stable-4757.2.1)

[Original release notes](https://github.com/flatcar/scripts/releases/tag/stable-4757.2.1)