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umbrel

v1.7.3 Security

This release patches 1 CVE for security teams tracking exposure across their dependency inventory.

Published 22d Home Automation
1 patched CVE
Read the diff → Tool health → What is this tool? →
This release patches 1 known CVE CVE-2025-31125 EPSS 83%
1 CVEs patched

Topics

bitcoin docker self-hosted homeserver lightning openclaw
+3 more
personal-server raspberry-pi raspberrypi

Affected surfaces

rce_ssrf

ReleasePort's take

Moderate signal
editorial:auto 13d

Umbrel 1.7.3 fixes DirtyFrag vulnerabilities CVE-2026-43284 and CVE-2026-43500 in the Linux kernel. Deployed nodes should upgrade immediately.

Why it matters: Umbrel 1.7.3 patches DirtyFrag kernel vulnerabilities CVE-2026-43284 and CVE-2026-43500. Upgrade deployed nodes immediately. Also improves Raspberry Pi storage reliability.

Summary

AI summary

Fixes DirtyFrag vulnerabilities CVE-2026-43284 and CVE-2026-43500 in the Linux kernel.

Changes in this release

Security Medium

Fixes DirtyFrag CVE-2026-43284 and CVE-2026-43500 in Linux kernel

Fixes DirtyFrag CVE-2026-43284 and CVE-2026-43500 in Linux kernel

Source: llm_adapter@2026-05-21

Confidence: low

 —
Performance Medium

Improved storage reliability on Raspberry Pi 4

Improved storage reliability on Raspberry Pi 4

Source: llm_adapter@2026-05-21

Confidence: high

 —
Full changelog

umbrelOS 1.7.3 is an important security update that fixes the DirtyFrag (CVE-2026-43284 and CVE-2026-43500) security vulnerabilities recently discovered in the Linux kernel.

It also includes improved storage reliability on Raspberry Pi 4.

See what's new in umbrelOS 1.7.

Join the Umbrel Community Discord to share your feedback on this update and engage with other users.

Downloads

  • https://download.umbrel.com/release/1.7.3/SHA256SUMS
  • https://download.umbrel.com/release/1.7.3/SHA256SUMS.ots
  • https://download.umbrel.com/release/1.7.3/umbrelos-amd64-usb-installer.iso
  • https://download.umbrel.com/release/1.7.3/umbrelos-amd64.img.xz
  • https://download.umbrel.com/release/1.7.3/umbrelos-amd64.update
  • https://download.umbrel.com/release/1.7.3/umbrelos-pi.update
  • https://download.umbrel.com/release/1.7.3/umbrelos-pi4.img.zip
  • https://download.umbrel.com/release/1.7.3/umbrelos-pi5.img.zip

Security Fixes

  • CVE-2026-43284 – DirtyFrag Linux kernel vulnerability
  • CVE-2026-43500 – DirtyFrag Linux kernel vulnerability
View diff on GitHub

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About umbrel

An elegant home server OS. Run OpenClaw, store your files and photos, run a Bitcoin node, and do more with over 300 apps in the Umbrel App Store.

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Related context

Related CVEs

Beta — feedback welcome: [email protected]