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Fedora 44 Tailscale Critical DoS Issues CVE-2026-34165 2026-07897c0238

fedora
Calendar Grey June 8, 2026
Dist Fedora Esm H88
Update for Fedora 44 includes critical fixes for tailscale addressing denial of service vulnerabilities.
update to 1.98.4 Allow nftables to satisfy firewall dependency in lieu of iptables rhbz#2453924 Fix 45s timeout on shutdowns in certain cases rhbz#2440864 Fixes CVE-2026-34165 rhbz...

Summary

The easiest, most secure way to use WireGuard and 2FA.

Update Information:

update to 1.98.4 Allow nftables to satisfy firewall dependency in lieu of iptables rhbz#2453924 Fix 45s timeout on shutdowns in certain cases rhbz#2440864 Fixes CVE-2026-34165 rhbz#2454571 Fixes CVE-2026-33762 rhbz#2454572

Topics%20covered

Topics Covered

security advisory denial of service fedora update critical tailscale

Change Log

* Sun May 31 2026 Jonathan Wright - 1.98.4-1 - update to 1.98.4 - Allow nftables to satisfy firewall dependency in lieu of iptables rhbz#2453924 - Fix 45s timeout on shutdowns in certain cases rhbz#2440864 - Fixes CVE-2026-34165 rhbz#2454571 - Fixes CVE-2026-33762 rhbz#2454572 * Sun May 31 2026 Jonathan Wright - 1.98.3-1 - update to 1.98.3 rhbz#2448765

References


[ 1 ] Bug #2440864 - tailscale causing reboot to delay by 45 seconds as service shutdown times out https://bugzilla.redhat.com/show_bug.cgi?id=2440864 [ 2 ] Bug #2448765 - tailscale-1.98.3 is available https://bugzilla.redhat.com/show_bug.cgi?id=2448765 [ 3 ] Bug #2453924 - drop hard dependency on iptables from tailscale https://bugzilla.redhat.com/show_bug.cgi?id=2453924 [ 4 ] Bug #2454571 - CVE-2026-34165 tailscale: go-git: Denial of Service via crafted .idx file [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2454571 [ 5 ] Bug #2454572 - CVE-2026-33762 tailscale: go-git: Denial of Service via crafted Git index file [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2454572

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-07897c0238' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
critical
Lowest
Low
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Critical

Name: tailscale
Product: Fedora 44
Version: 1.98.4
Release: 1.fc44
URL: https://github.com/tailscale/tailscale
Summary: The easiest, most secure way to use WireGuard and 2FA

Topics%20covered

Topics Covered

security advisory denial of service fedora update critical tailscale

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