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Fedora 44 Nextcloud Critical Denial Service Issues Advisory 2026-ee50c21f92

fedora
Calendar Grey July 4, 2026
Dist Fedora Esm H88
Nextcloud 33.0.6 on Fedora 44 addresses critical Denial of Service vulnerabilities requiring immediate attention for users.
33.0.6 Release

Summary

NextCloud gives you universal access to your files through a web interface or

WebDAV. It also provides a platform to easily view & sync your contacts,

calendars and bookmarks across all your devices and enables basic editing right

on the web. NextCloud is extendable via a simple but powerful API for

applications and plugins.

Update Information:

33.0.6 Release

Topics%20covered

Topics Covered

security advisory denial service critical nextcloud file share recent update

Change Log

* Fri Jun 26 2026 Andrew Bauer - 33.0.6-1 - 33.0.6 release * Tue Jun 9 2026 Brian J. Murrell - 33.0.5-2 - Dynamically determine which .map file to update the occ upgrade command in

References


[ 1 ] Bug #2486357 - nextcloud-34.0.1 is available https://bugzilla.redhat.com/show_bug.cgi?id=2486357 [ 2 ] Bug #2486491 - CVE-2026-41150 nextcloud: Mermaid: Denial of Service via specially crafted gantt charts [epel-all] https://bugzilla.redhat.com/show_bug.cgi?id=2486491 [ 3 ] Bug #2486496 - CVE-2026-41150 nextcloud: Mermaid: Denial of Service via specially crafted gantt charts [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2486496 [ 4 ] Bug #2487344 - .map file update is fragile https://bugzilla.redhat.com/show_bug.cgi?id=2487344 [ 5 ] Bug #2487477 - CVE-2026-8723 nextcloud: qs: Denial of Service due to improper handling of null/undefined array elements [epel-all] https://bugzilla.redhat.com/show_bug.cgi?id=2487477 [ 6 ] Bug #2487498 - CVE-2026-8723 nextcloud: qs: Denial of Service due to improper handling of null/undefined array elements [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2487...

Read the Full Advisory

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-ee50c21f92' 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
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Critical

Name: nextcloud
Product: Fedora 44
Version: 33.0.6
Release: 1.fc44
URL: http://nextcloud.com
Summary: Private file sync and share server

Topics%20covered

Topics Covered

security advisory denial service critical nextcloud file share recent update

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