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Version 7.3.1 2026-05-27

This release focuses on security updates, a Linux kernel update, Docker and ZFS updates, storage fixes, WebGUI/system fixes, and base distro package updates.

Recommended for all users, especially those who want the latest security and stability fixes.

Upgrading​

For step-by-step instructions, see Updating Unraid. Questions about your license?

Known issues​

  • No new release-specific known issues are reported for this release. See the Unraid OS 7.3.0 release notes for previously documented issues that may still apply.

Notes​

  • This release includes security-related package updates.
  • The Unraid API version remains 4.34.0.

Rolling back​

  • No special rollback notes for this release.

Changes vs. Unraid OS 7.3.0​

Security​

  • Security: updated bind to address CVE-2026-1519, CVE-2026-3039, CVE-2026-3104, CVE-2026-3119, CVE-2026-3591, CVE-2026-3592, CVE-2026-3593, CVE-2026-5946, and CVE-2026-5947.
  • Security: updated dnsmasq to address CVE-2026-2291, CVE-2026-4890, CVE-2026-4891, CVE-2026-4892, CVE-2026-4893, and CVE-2026-5172.
  • Security: updated nginx to address CVE-2025-53859, CVE-2026-1642, CVE-2026-27651, CVE-2026-27654, CVE-2026-27784, CVE-2026-28753, CVE-2026-28755, CVE-2026-32647, CVE-2026-40460, CVE-2026-40701, CVE-2026-42934, CVE-2026-42945, and CVE-2026-42946.
  • Security: updated rsync to address CVE-2026-29518, CVE-2026-43617, CVE-2026-43618, CVE-2026-43619, CVE-2026-43620, and CVE-2026-45232.
  • Security: updated Docker to 29.5.1, including Docker upstream CVE fixes.
  • Security: updated avahi, glibc, and jq with NVD-referenced security fixes listed in the base distro updates below.

Containers / Docker​

  • Improvement: Docker engine updated to 29.5.1.
  • Fix: the Docker container dropdown menu remains usable when many containers are shown.

Storage​

  • Improvement: ZFS updated to 2.4.2_6.18.33_Unraid.
  • Fix: unassigned spare disks now spin down again as expected.
  • Fix: mirrored boot pools can recover from a degraded state after a member returns for cache pool usage.
  • Fix: relaxed the pool name validity check when importing existing pools to match pre-7.3 validation.
  • Fix: Replacing online raidz device can fail

WebGUI / System​

  • Fix: restored missing Connect version-check logic so required updates are detected correctly.
  • Fix: file uploads are now handled correctly on Safari iOS.

Networking / Hardware​

  • Fix: dhcpcd no longer waits 60 seconds to obtain an IP address.

Linux kernel​

  • Linux kernel: update to 6.18.33-Unraid.

Base distro updates​

Updated packages (25)​

  • aaa_glibc-solibs: version 2.42 -> 2.43
  • at-spi2-core: version 2.60.3 -> 2.60.4
  • avahi: version 0.8-3_SBo_LT -> 20260508_3737842-1_SBo (NVD: CVE-2023-38469, CVE-2023-38470, CVE-2023-38471, CVE-2023-38472, CVE-2023-38473)
  • bash: version 5.3.009 -> 5.3.009-2
  • bind: version 9.20.22 -> 9.20.23 (CVE-2026-3039, CVE-2026-3592, CVE-2026-3593, CVE-2026-5946, CVE-2026-5947; NVD: CVE-2026-5950)
  • dnsmasq: version 2.92 -> 2.92rel2
  • docker: version 29.4.3-1_LT -> 29.5.1-1_LT
  • elogind: version 255.24 -> 255.25
  • fontconfig: version 2.17.1-5 -> 2.18.0-2
  • glibc: version 2.42-2_LT -> 2.43 (NVD: CVE-2025-15281, CVE-2026-0861, CVE-2026-0915)
  • jq: version 1.6-1_SBo -> 1.8.1-1_SBo (NVD: CVE-2024-53427, CVE-2025-9403)
  • less: version 692 -> 702
  • libXi: version 1.8.2 -> 1.8.3
  • libedit: version 20260508_3.1 -> 20260512_3.1
  • libusb: version 1.0.29 -> 1.0.30
  • libusb-compat: version 0.1.8 -> 0.1.9
  • lvm2: version 2.03.40 -> 2.03.41
  • mesa: version 26.1.0 -> 26.1.1
  • nginx: version 1.27.2-1_SBo_LT -> 1.30.1-1_SBo_LT (NVD: CVE-2025-53859, CVE-2026-1642, CVE-2026-27651, CVE-2026-27654, CVE-2026-27784, CVE-2026-28753, CVE-2026-28755, CVE-2026-32647, CVE-2026-40460, CVE-2026-40701, CVE-2026-42934, CVE-2026-42945, CVE-2026-42946)
  • rsync: version 3.4.2 -> 3.4.3 (CVE-2026-29518, CVE-2026-43617, CVE-2026-43618, CVE-2026-43619, CVE-2026-43620, CVE-2026-45232)
  • samba: version 4.22.8-1_LT -> 4.22.10-1_LT
  • util-linux: version 2.42-2 -> 2.42.1
  • which: version 2.23 -> 2.25
  • xev: version 1.2.6 -> 1.2.7
  • xfsprogs: version 7.0.0 -> 7.0.1
  • zfs: version 2.4.1_6.18.29_Unraid-1_LT -> 2.4.2_6.18.33_Unraid-1_LT