A rxvt-unicode security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: rxvt-unicode-9.26-1.fc33

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Fedora Update Notification
FEDORA-2021-a4c0a91884
2021-05-30 17:28:31.785871
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Name : rxvt-unicode
Product : Fedora 33
Version : 9.26
Release : 1.fc33
URL :   http://software.schmorp.de/
Summary : Unicode version of rxvt
Description :
rxvt-unicode is a clone of the well known terminal emulator rxvt, modified to
store text in Unicode (either UCS-2 or UCS-4) and to use locale-correct input
and output. It also supports mixing multiple fonts at the same time, including
Xft fonts.

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Update Information:

- New upstream release - 9.26 (roll up to rawhide) - Fixes
[CVE-2021-33477](  https://nvd.nist.gov/vuln/detail/CVE-2021-33477)
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ChangeLog:

* Fri May 14 2021 Robbie Harwood - 9.26-1
- New upstream release (9.26)
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References:

[ 1 ] Bug #1961795 - CVE-2021-33477 rxvt-unicode: possible remote code execution [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1961795
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-a4c0a91884' 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