SUSE alert openSUSE-SU-2026:21048-1 (python-idna)

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null@suse.de
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security-announce@lists.opensuse.org
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openSUSE-SU-2026:21048-1: moderate: Security update for python-idna
Date:
             
 
Tue, 30 Jun 2026 09:48:05 +0200
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<20260630074805.E25C7FF75@maintenance.suse.de>
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Article
openSUSE security update: security update for python-idna
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21048-1
Rating: moderate
References:

  * bsc#1265413



Cross-References:

  * CVE-2026-45409



CVSS scores:

  * CVE-2026-45409 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-45409 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves one vulnerability and has one bug fix can now be installed.

Description:

This update for python-idna fixes the following issue

- CVE-2026-45409: specially crafted inputs to idna.encode() can bypass earlier security fix
(bsc#1265413).


Patch instructions:

   To install this openSUSE security update use the suse recommended installation methods
   like YaST online_update or "zypper patch".
   Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-1061=1

Package List:

- openSUSE Leap 16.0:

  python313-idna-3.10-160000.3.1

References:

  * https://www.suse.com/security/cve/CVE-2026-45409.html