Fedora 43 moby-engine 29.4.0 Moderate Denial of Service CVE-2026-34986
fedora
April 16, 2026
Update to release v29.4.0 Resolves: rhbz#2455894 Resolves CVE-2026-34986: rhbz#2455665 Upstream new features and fixes
Summary
Docker is an open source project to build, ship and run any application as a
lightweight container.
Docker containers are both hardware-agnostic and platform-agnostic. This means
they can run anywhere, from your laptop to the largest EC2 compute instance and
everything in between \u2014 and they do not require you to use a particular
language, framework or packaging system. That makes them great building blocks
for deploying and scaling web apps, databases, and backend services without
depending on a particular stack or provider.
Update Information:
Update to release v29.4.0 Resolves: rhbz#2455894 Resolves CVE-2026-34986: rhbz#2455665 Upstream new features and fixes
Topics Covered
Change Log
* Tue Apr 7 2026 Bradley G Smith
References
[ 1 ] Bug #2455665 - CVE-2026-34986 moby-engine: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2455665
[ 2 ] Bug #2455894 - moby-engine-29.4.0 is available
https://bugzilla.redhat.com/show_bug.cgi?id=2455894
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-a5015b57b9' 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
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Severity
important
Lowest
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Critical
Name: moby-engine
Product: Fedora 43
Version: 29.4.0
Release: 1.fc43
Summary: The open-source application container engine
Topics Covered
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