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Fedora Update Notification
FEDORA-2026-0bf84c3130
2026-10-16 16:32:18.971300+00:00
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Name : log4net
Product : Fedora 44
Version : 3.5.0
Release : 1.fc44
URL : http://logging.apache.org/log4net/
Summary : A .NET framework for logging
Description :
log4net is a tool to help the programmer output log statements to a
variety of output targets. log4net is a port of the excellent log4j
framework to the .NET runtime

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Update Information:

Update log4net to 3.5.0. Nant is rebuilt (only dependency in Fedora).
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ChangeLog:

* Wed Oct 7 2026 Tom Callaway <spot@fedoraproject.org> 3.5.0-1
- update to 3.5.0
* Thu Jul 16 2026 Fedora Release Engineering <releng@fedoraproject.org> -
2.0.8-25
- Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild
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References:

[ 1 ] Bug #2457917 - CVE-2026-40021 log4net: Apache Log4net: Denial of
Service for logging via unsanitized XML characters [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2457917
[ 2 ] Bug #2547384 - CVE-2026-105241 log4net: log4net: Log event suppression
via improper Unicode handling in SmtpPickupDirAppender [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2547384
[ 3 ] Bug #2547386 - CVE-2026-105242 log4net: log4net: Audit log suppression
via crafted request parameters [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2547386
[ 4 ] Bug #2547388 - CVE-2026-105244 log4net: log4net: Log manipulation via
improper character escaping in RemoteSyslogAppender [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2547388
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2026-0bf84c3130' 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

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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