A mingw-python-urllib3 security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: mingw-python-urllib3-1.25.10-3.fc34

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Fedora Update Notification
FEDORA-2021-b14975e43d
2021-06-19 01:08:02.703506
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Name : mingw-python-urllib3
Product : Fedora 34
Version : 1.25.10
Release : 3.fc34
URL :   https://urllib3.readthedocs.io/en/latest/
Summary : MinGW Windows Python urllib3
Description :
MinGW Windows Python urllib3.

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Update Information:

Backport fix for CVE-2021-33503.
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ChangeLog:

* Thu Jun 10 2021 Sandro Mani - 1.25.10-3
- Backport fix for CVE-2021-33503
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References:

[ 1 ] Bug #1968077 - CVE-2021-33503 mingw-python-urllib3: python-urllib3: Catastrophic backtracking in URL authority parser [fedora-34]
  https://bugzilla.redhat.com/show_bug.cgi?id=1968077
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-b14975e43d' 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