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Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. Improper Handling of Unicode Encoding vulnerability in the SmtpPickupDirAppender of Apache log4net. Content that the mail file writer cannot encode, such as an unpaired UTF-16 surrogate, made the write throw. Every buffered event in the batch was discarded, not only the one carrying the content, and a truncated mail could be left in the pickup directory. A party whose data reaches a log message could suppress the records of other events. Only applications that use SmtpPickupDirAppender are affected. This issue affects Apache log4net: from 1.2.9 before 3.5.0. Users are recommended to upgrade to version 3.5.0, which fixes the issue.
FEDORA-2026-588bc7e01c (log4net-3.5.0-1.fc43 and nant-0.92-43.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-588bc7e01c
FEDORA-2026-6515ac01d8 (log4net-3.5.0-1.fc45 and nant-0.92-43.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-6515ac01d8
FEDORA-2026-0bf84c3130 (log4net-3.5.0-1.fc44 and nant-0.92-43.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-0bf84c3130
FEDORA-2026-6515ac01d8 has been pushed to the Fedora 45 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-6515ac01d8` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-6515ac01d8 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-0bf84c3130 has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-0bf84c3130` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-0bf84c3130 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-588bc7e01c has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-588bc7e01c` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-588bc7e01c See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-0bf84c3130 (log4net-3.5.0-1.fc44 and nant-0.92-43.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-588bc7e01c (log4net-3.5.0-1.fc43 and nant-0.92-43.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report.