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openSUSE Leap 16.0 python-idna Moderate Input Bypass CVE-2026-45409

opensuse
Calendar Grey June 30, 2026
Dist Opensuse Esm H88
Update for openSUSE addresses CVE-2026-45409 in python-idna, fixing input bypass issue and other concerns.
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

Topics%20covered

Topics Covered

security advisory moderate OpenSUSE input bypass python-idna CVE-2026-45409

Patch

Package List

- openSUSE Leap 16.0:

python313-idna-3.10-160000.3.1

References

* bsc#1265413

References:

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

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:21048-1
Rating: moderate
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory moderate OpenSUSE input bypass python-idna CVE-2026-45409

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