Fedora 43 nano Critical Update for CVE-2026-6843 Denial of Service Issue
fedora
May 7, 2026
fix CVE-2026-6842 and CVE-29026-6843 Resolves: CVE-2026-6842 Resolves: CVE-2026-6843 Resolves: rhbz#2455127 Resolves: rhbz#2455314
Summary
GNU nano is a small and friendly text editor.
Update Information:
fix CVE-2026-6842 and CVE-29026-6843 Resolves: CVE-2026-6842 Resolves: CVE-2026-6843 Resolves: rhbz#2455127 Resolves: rhbz#2455314
Topics Covered
Change Log
* Thu Apr 30 2026 Luk\u0161 Zaoral
References
[ 1 ] Bug #2455127 - [Security] Format String Vulnerability in nano's statusline() via errormessage Buffer
https://bugzilla.redhat.com/show_bug.cgi?id=2455127
[ 2 ] Bug #2460502 - CVE-2026-6842 nano: nano: Local attacker can inject malicious .desktop launcher due to insecure directory permissions [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2460502
[ 3 ] Bug #2460503 - CVE-2026-6843 nano: nano: Format string vulnerability leads to Denial of Service [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2460503
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-d0a0f1c3d2' 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
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Name: nano
Product: Fedora 43
Version: 8.5
Release: 3.fc43
Summary: A small text editor
Topics Covered
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