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security advisory moderate input handling OpenSUSE data truncation python3-pyOpenSSL

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openSUSE python3-pyOpenSSL Input Processing Vulnerability 2026-2259-1

opensuse

June 3, 2026

An update that solves one vulnerability can now be installed.

Description

This update for python3-pyOpenSSL fixes the following issue

* CVE-2026-40475: improper input handling of null bytes can lead to silent

data truncation and security-state inconsistency (bsc#1262803).

Topics Covered

security advisory moderate input handling OpenSUSE data truncation python3-pyOpenSSL

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-2259=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-2259=1

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-2259=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-2259=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-2259=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-2259=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2259=1