---
# System prepended metadata

title: Flatcar Container Linux Release - 15th Sept. 2025 2/2

---

### LTS 4081.3.6

_Changes since **LTS 4081.3.5**_

#### Security fixes:

- Linux ([CVE-2025-39726](https://nvd.nist.gov/vuln/detail/CVE-2025-39726), [CVE-2025-38670](https://nvd.nist.gov/vuln/detail/CVE-2025-38670), [CVE-2025-38668](https://nvd.nist.gov/vuln/detail/CVE-2025-38668), [CVE-2025-38666](https://nvd.nist.gov/vuln/detail/CVE-2025-38666), [CVE-2025-38665](https://nvd.nist.gov/vuln/detail/CVE-2025-38665), [CVE-2025-38664](https://nvd.nist.gov/vuln/detail/CVE-2025-38664), [CVE-2025-38663](https://nvd.nist.gov/vuln/detail/CVE-2025-38663), [CVE-2025-38671](https://nvd.nist.gov/vuln/detail/CVE-2025-38671), [CVE-2025-38552](https://nvd.nist.gov/vuln/detail/CVE-2025-38552), [CVE-2025-38520](https://nvd.nist.gov/vuln/detail/CVE-2025-38520), [CVE-2025-38500](https://nvd.nist.gov/vuln/detail/CVE-2025-38500), [CVE-2025-39734](https://nvd.nist.gov/vuln/detail/CVE-2025-39734), [CVE-2025-39731](https://nvd.nist.gov/vuln/detail/CVE-2025-39731), [CVE-2025-39730](https://nvd.nist.gov/vuln/detail/CVE-2025-39730), [CVE-2025-38650](https://nvd.nist.gov/vuln/detail/CVE-2025-38650), [CVE-2025-38648](https://nvd.nist.gov/vuln/detail/CVE-2025-38648), [CVE-2025-38646](https://nvd.nist.gov/vuln/detail/CVE-2025-38646), [CVE-2025-38645](https://nvd.nist.gov/vuln/detail/CVE-2025-38645), [CVE-2025-38644](https://nvd.nist.gov/vuln/detail/CVE-2025-38644), [CVE-2025-38659](https://nvd.nist.gov/vuln/detail/CVE-2025-38659), [CVE-2025-38653](https://nvd.nist.gov/vuln/detail/CVE-2025-38653), [CVE-2025-38652](https://nvd.nist.gov/vuln/detail/CVE-2025-38652), [CVE-2025-38626](https://nvd.nist.gov/vuln/detail/CVE-2025-38626), [CVE-2025-38625](https://nvd.nist.gov/vuln/detail/CVE-2025-38625), [CVE-2025-38624](https://nvd.nist.gov/vuln/detail/CVE-2025-38624), [CVE-2025-38623](https://nvd.nist.gov/vuln/detail/CVE-2025-38623), [CVE-2025-38622](https://nvd.nist.gov/vuln/detail/CVE-2025-38622), [CVE-2025-38640](https://nvd.nist.gov/vuln/detail/CVE-2025-38640), [CVE-2025-38639](https://nvd.nist.gov/vuln/detail/CVE-2025-38639), [CVE-2025-38635](https://nvd.nist.gov/vuln/detail/CVE-2025-38635), [CVE-2025-38634](https://nvd.nist.gov/vuln/detail/CVE-2025-38634), [CVE-2025-38632](https://nvd.nist.gov/vuln/detail/CVE-2025-38632), [CVE-2025-38630](https://nvd.nist.gov/vuln/detail/CVE-2025-38630), [CVE-2025-38618](https://nvd.nist.gov/vuln/detail/CVE-2025-38618), [CVE-2025-38617](https://nvd.nist.gov/vuln/detail/CVE-2025-38617), [CVE-2025-38611](https://nvd.nist.gov/vuln/detail/CVE-2025-38611), [CVE-2025-38615](https://nvd.nist.gov/vuln/detail/CVE-2025-38615), [CVE-2025-38612](https://nvd.nist.gov/vuln/detail/CVE-2025-38612), [CVE-2025-38577](https://nvd.nist.gov/vuln/detail/CVE-2025-38577), [CVE-2025-38583](https://nvd.nist.gov/vuln/detail/CVE-2025-38583), [CVE-2025-38581](https://nvd.nist.gov/vuln/detail/CVE-2025-38581), [CVE-2025-38610](https://nvd.nist.gov/vuln/detail/CVE-2025-38610), [CVE-2025-38609](https://nvd.nist.gov/vuln/detail/CVE-2025-38609), [CVE-2025-38608](https://nvd.nist.gov/vuln/detail/CVE-2025-38608), [CVE-2025-38604](https://nvd.nist.gov/vuln/detail/CVE-2025-38604), [CVE-2025-38602](https://nvd.nist.gov/vuln/detail/CVE-2025-38602), [CVE-2025-38601](https://nvd.nist.gov/vuln/detail/CVE-2025-38601), [CVE-2025-38579](https://nvd.nist.gov/vuln/detail/CVE-2025-38579), [CVE-2025-38590](https://nvd.nist.gov/vuln/detail/CVE-2025-38590), [CVE-2025-38588](https://nvd.nist.gov/vuln/detail/CVE-2025-38588), [CVE-2025-38587](https://nvd.nist.gov/vuln/detail/CVE-2025-38587), [CVE-2025-38578](https://nvd.nist.gov/vuln/detail/CVE-2025-38578), [CVE-2025-38563](https://nvd.nist.gov/vuln/detail/CVE-2025-38563), [CVE-2025-38562](https://nvd.nist.gov/vuln/detail/CVE-2025-38562), [CVE-2025-38561](https://nvd.nist.gov/vuln/detail/CVE-2025-38561), [CVE-2025-38560](https://nvd.nist.gov/vuln/detail/CVE-2025-38560), [CVE-2025-38576](https://nvd.nist.gov/vuln/detail/CVE-2025-38576), [CVE-2025-38574](https://nvd.nist.gov/vuln/detail/CVE-2025-38574), [CVE-2025-38572](https://nvd.nist.gov/vuln/detail/CVE-2025-38572), [CVE-2025-38571](https://nvd.nist.gov/vuln/detail/CVE-2025-38571), [CVE-2025-38569](https://nvd.nist.gov/vuln/detail/CVE-2025-38569), [CVE-2025-38568](https://nvd.nist.gov/vuln/detail/CVE-2025-38568), [CVE-2025-38566](https://nvd.nist.gov/vuln/detail/CVE-2025-38566), [CVE-2025-38565](https://nvd.nist.gov/vuln/detail/CVE-2025-38565), [CVE-2025-38555](https://nvd.nist.gov/vuln/detail/CVE-2025-38555), [CVE-2025-38553](https://nvd.nist.gov/vuln/detail/CVE-2025-38553), [CVE-2025-38501](https://nvd.nist.gov/vuln/detail/CVE-2025-38501), [CVE-2025-39798](https://nvd.nist.gov/vuln/detail/CVE-2025-39798), [CVE-2025-39797](https://nvd.nist.gov/vuln/detail/CVE-2025-39797), [CVE-2025-39795](https://nvd.nist.gov/vuln/detail/CVE-2025-39795), [CVE-2025-39794](https://nvd.nist.gov/vuln/detail/CVE-2025-39794), [CVE-2025-39773](https://nvd.nist.gov/vuln/detail/CVE-2025-39773), [CVE-2025-39772](https://nvd.nist.gov/vuln/detail/CVE-2025-39772), [CVE-2025-39770](https://nvd.nist.gov/vuln/detail/CVE-2025-39770), [CVE-2025-39790](https://nvd.nist.gov/vuln/detail/CVE-2025-39790), [CVE-2025-39788](https://nvd.nist.gov/vuln/detail/CVE-2025-39788), [CVE-2025-39787](https://nvd.nist.gov/vuln/detail/CVE-2025-39787), [CVE-2025-39767](https://nvd.nist.gov/vuln/detail/CVE-2025-39767), [CVE-2025-39783](https://nvd.nist.gov/vuln/detail/CVE-2025-39783), [CVE-2025-39782](https://nvd.nist.gov/vuln/detail/CVE-2025-39782), [CVE-2025-39781](https://nvd.nist.gov/vuln/detail/CVE-2025-39781), [CVE-2025-39776](https://nvd.nist.gov/vuln/detail/CVE-2025-39776), [CVE-2025-39766](https://nvd.nist.gov/vuln/detail/CVE-2025-39766), [CVE-2025-39750](https://nvd.nist.gov/vuln/detail/CVE-2025-39750), [CVE-2025-39760](https://nvd.nist.gov/vuln/detail/CVE-2025-39760), [CVE-2025-39759](https://nvd.nist.gov/vuln/detail/CVE-2025-39759), [CVE-2025-39758](https://nvd.nist.gov/vuln/detail/CVE-2025-39758), [CVE-2025-39757](https://nvd.nist.gov/vuln/detail/CVE-2025-39757), [CVE-2025-39756](https://nvd.nist.gov/vuln/detail/CVE-2025-39756), [CVE-2025-39753](https://nvd.nist.gov/vuln/detail/CVE-2025-39753), [CVE-2025-39752](https://nvd.nist.gov/vuln/detail/CVE-2025-39752), [CVE-2025-39763](https://nvd.nist.gov/vuln/detail/CVE-2025-39763), [CVE-2025-39761](https://nvd.nist.gov/vuln/detail/CVE-2025-39761), [CVE-2025-39751](https://nvd.nist.gov/vuln/detail/CVE-2025-39751), [CVE-2025-39744](https://nvd.nist.gov/vuln/detail/CVE-2025-39744), [CVE-2025-39743](https://nvd.nist.gov/vuln/detail/CVE-2025-39743), [CVE-2025-39742](https://nvd.nist.gov/vuln/detail/CVE-2025-39742), [CVE-2025-39739](https://nvd.nist.gov/vuln/detail/CVE-2025-39739), [CVE-2025-39738](https://nvd.nist.gov/vuln/detail/CVE-2025-39738), [CVE-2025-39749](https://nvd.nist.gov/vuln/detail/CVE-2025-39749), [CVE-2025-39736](https://nvd.nist.gov/vuln/detail/CVE-2025-39736), [CVE-2025-39737](https://nvd.nist.gov/vuln/detail/CVE-2025-39737), [CVE-2025-39711](https://nvd.nist.gov/vuln/detail/CVE-2025-39711), [CVE-2025-39720](https://nvd.nist.gov/vuln/detail/CVE-2025-39720), [CVE-2025-39719](https://nvd.nist.gov/vuln/detail/CVE-2025-39719), [CVE-2025-39718](https://nvd.nist.gov/vuln/detail/CVE-2025-39718), [CVE-2025-39716](https://nvd.nist.gov/vuln/detail/CVE-2025-39716), [CVE-2025-39715](https://nvd.nist.gov/vuln/detail/CVE-2025-39715), [CVE-2025-39714](https://nvd.nist.gov/vuln/detail/CVE-2025-39714), [CVE-2025-39713](https://nvd.nist.gov/vuln/detail/CVE-2025-39713), [CVE-2025-39724](https://nvd.nist.gov/vuln/detail/CVE-2025-39724), [CVE-2025-39721](https://nvd.nist.gov/vuln/detail/CVE-2025-39721), [CVE-2025-39675](https://nvd.nist.gov/vuln/detail/CVE-2025-39675), [CVE-2025-39673](https://nvd.nist.gov/vuln/detail/CVE-2025-39673), [CVE-2025-39710](https://nvd.nist.gov/vuln/detail/CVE-2025-39710), [CVE-2025-39709](https://nvd.nist.gov/vuln/detail/CVE-2025-39709), [CVE-2025-38735](https://nvd.nist.gov/vuln/detail/CVE-2025-38735), [CVE-2025-39706](https://nvd.nist.gov/vuln/detail/CVE-2025-39706), [CVE-2025-39703](https://nvd.nist.gov/vuln/detail/CVE-2025-39703), [CVE-2025-39702](https://nvd.nist.gov/vuln/detail/CVE-2025-39702), [CVE-2025-39701](https://nvd.nist.gov/vuln/detail/CVE-2025-39701), [CVE-2025-38734](https://nvd.nist.gov/vuln/detail/CVE-2025-38734), [CVE-2025-39694](https://nvd.nist.gov/vuln/detail/CVE-2025-39694), [CVE-2025-39693](https://nvd.nist.gov/vuln/detail/CVE-2025-39693), [CVE-2025-39692](https://nvd.nist.gov/vuln/detail/CVE-2025-39692), [CVE-2025-39691](https://nvd.nist.gov/vuln/detail/CVE-2025-39691), [CVE-2025-39689](https://nvd.nist.gov/vuln/detail/CVE-2025-39689), [CVE-2025-39687](https://nvd.nist.gov/vuln/detail/CVE-2025-39687), [CVE-2025-39686](https://nvd.nist.gov/vuln/detail/CVE-2025-39686), [CVE-2025-39685](https://nvd.nist.gov/vuln/detail/CVE-2025-39685), [CVE-2025-39684](https://nvd.nist.gov/vuln/detail/CVE-2025-39684), [CVE-2025-39683](https://nvd.nist.gov/vuln/detail/CVE-2025-39683), [CVE-2025-39682](https://nvd.nist.gov/vuln/detail/CVE-2025-39682), [CVE-2025-39681](https://nvd.nist.gov/vuln/detail/CVE-2025-39681), [CVE-2025-39679](https://nvd.nist.gov/vuln/detail/CVE-2025-39679), [CVE-2025-39676](https://nvd.nist.gov/vuln/detail/CVE-2025-39676), [CVE-2025-38732](https://nvd.nist.gov/vuln/detail/CVE-2025-38732), [CVE-2025-38727](https://nvd.nist.gov/vuln/detail/CVE-2025-38727), [CVE-2025-38730](https://nvd.nist.gov/vuln/detail/CVE-2025-38730), [CVE-2025-38729](https://nvd.nist.gov/vuln/detail/CVE-2025-38729), [CVE-2025-38728](https://nvd.nist.gov/vuln/detail/CVE-2025-38728), [CVE-2025-38694](https://nvd.nist.gov/vuln/detail/CVE-2025-38694), [CVE-2025-38702](https://nvd.nist.gov/vuln/detail/CVE-2025-38702), [CVE-2025-38701](https://nvd.nist.gov/vuln/detail/CVE-2025-38701), [CVE-2025-38700](https://nvd.nist.gov/vuln/detail/CVE-2025-38700), [CVE-2025-38699](https://nvd.nist.gov/vuln/detail/CVE-2025-38699), [CVE-2025-38698](https://nvd.nist.gov/vuln/detail/CVE-2025-38698), [CVE-2025-38725](https://nvd.nist.gov/vuln/detail/CVE-2025-38725), [CVE-2025-38724](https://nvd.nist.gov/vuln/detail/CVE-2025-38724), [CVE-2025-38697](https://nvd.nist.gov/vuln/detail/CVE-2025-38697), [CVE-2025-38723](https://nvd.nist.gov/vuln/detail/CVE-2025-38723), [CVE-2025-38721](https://nvd.nist.gov/vuln/detail/CVE-2025-38721), [CVE-2025-38718](https://nvd.nist.gov/vuln/detail/CVE-2025-38718), [CVE-2025-38716](https://nvd.nist.gov/vuln/detail/CVE-2025-38716), [CVE-2025-38715](https://nvd.nist.gov/vuln/detail/CVE-2025-38715), [CVE-2025-38714](https://nvd.nist.gov/vuln/detail/CVE-2025-38714), [CVE-2025-38696](https://nvd.nist.gov/vuln/detail/CVE-2025-38696), [CVE-2025-38713](https://nvd.nist.gov/vuln/detail/CVE-2025-38713), [CVE-2025-38712](https://nvd.nist.gov/vuln/detail/CVE-2025-38712), [CVE-2025-38711](https://nvd.nist.gov/vuln/detail/CVE-2025-38711), [CVE-2025-38709](https://nvd.nist.gov/vuln/detail/CVE-2025-38709), [CVE-2025-38708](https://nvd.nist.gov/vuln/detail/CVE-2025-38708), [CVE-2025-38707](https://nvd.nist.gov/vuln/detail/CVE-2025-38707), [CVE-2025-38706](https://nvd.nist.gov/vuln/detail/CVE-2025-38706), [CVE-2025-38695](https://nvd.nist.gov/vuln/detail/CVE-2025-38695), [CVE-2025-38688](https://nvd.nist.gov/vuln/detail/CVE-2025-38688), [CVE-2025-38687](https://nvd.nist.gov/vuln/detail/CVE-2025-38687), [CVE-2025-38685](https://nvd.nist.gov/vuln/detail/CVE-2025-38685), [CVE-2025-38684](https://nvd.nist.gov/vuln/detail/CVE-2025-38684), [CVE-2025-38683](https://nvd.nist.gov/vuln/detail/CVE-2025-38683), [CVE-2025-38681](https://nvd.nist.gov/vuln/detail/CVE-2025-38681), [CVE-2025-38693](https://nvd.nist.gov/vuln/detail/CVE-2025-38693), [CVE-2025-38692](https://nvd.nist.gov/vuln/detail/CVE-2025-38692), [CVE-2025-38691](https://nvd.nist.gov/vuln/detail/CVE-2025-38691), [CVE-2025-38679](https://nvd.nist.gov/vuln/detail/CVE-2025-38679), [CVE-2025-38680](https://nvd.nist.gov/vuln/detail/CVE-2025-38680), [CVE-2025-38677](https://nvd.nist.gov/vuln/detail/CVE-2025-38677), [CVE-2025-40300](https://nvd.nist.gov/vuln/detail/CVE-2025-40300))

#### Updates:

- Linux ([6.6.106](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.6.106) (includes [6.6.105](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.6.105), [6.6.104](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.6.104), [6.6.103](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.6.103), [6.6.102](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.6.102), [6.6.101](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tag/?h=v6.6.101)))
- ca-certificates ([3.115.1](https://firefox-source-docs.mozilla.org/security/nss/releases/nss_3_115_1.html) (includes [3.115](https://firefox-source-docs.mozilla.org/security/nss/releases/nss_3_115.html)))


Best,
The Flatcar Container Linux Maintainers

---

### Communication

#### Go/No-Go message for Matrix/Slack

Go/No-Go Meeting for Alpha 4459.0.0, Beta 4426.1.0, Stable 4230.2.3, LTS 4081.3.6
Pre-view images are available in https://bincache.flatcar-linux.net/images/amd64/$VERSION/
Tracking issue: https://github.com/flatcar/Flatcar/issues/1886
The Go/No-Go document is in our HackMD @flatcar namespace
Link: https://hackmd.io/s2LF8NgkTmuUKywbg8JoCw?view

Please give your Go/No-Go vote with 💚 for Go, ❌ for No-Go, and ✋ for Wait.

Contributors & community feel free to put your suggestions, thoughts or comments on the document or here in the chat.

@MAINTAINER @MAINTAINER @MAINTAINER

#### Mastodon

_The toot (from [@flatcar](https://hachyderm.io/@flatcar)) goes out after the changelog update has been published; it includes a link to the web changelog._

New Flatcar releases for all channels!
📦 Many package updates: Linux, Podman, curl, etc. 
🔒 CVE fixes & security patches: VMScape Spectre variant patched for Linux, etc. 
📜 Release notes at the usual spot: https://www.flatcar.org/releases/ 

#### Kubernetes Slack

_This goes in the #flatcar channel_

Please welcome Flatcar releases of this month:
- Alpha 4459.0.0 (new major)
- Beta 4426.1.0 (new major)
- Stable 4230.2.3 (maintenance release)
- LTS-2024 4081.3.6 (maintenance release)

These releases include:
🚀 new features: Hyper-V OEM new provided as a sysext image, etc.
📦 Many package updates: Linux (patching the VMScape Spectre variant), Podman, etc.
📜 Release notes in usual spot: https://www.flatcar.org/releases/
