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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. Roundcube Webmail before 1.6.21 and 1.7.x before 1.7.6 contains an IMAP command injection vulnerability that allows attackers to inject commands via CRLF in the _uid parameter when messages_cache is enabled. Attackers can lure logged-in victims into opening crafted GET links to mail/show or mail/get, executing IMAP commands that delete messages, change flags, or grant mailbox access via SETACL.
FEDORA-2026-8ba6632f4a (roundcubemail-1.6.21-1.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-8ba6632f4a
FEDORA-2026-b6615c7ae7 (roundcubemail-1.7.6-1.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-b6615c7ae7
FEDORA-2026-f67031546e (roundcubemail-1.7.6-1.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-f67031546e
FEDORA-2026-b6615c7ae7 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-b6615c7ae7` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-b6615c7ae7 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.