Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 523
Alerts This Week
Warning Icon 1 523

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

opensuse
Calendar Grey June 3, 2026
Scroller Opensuse
Install the latest python3-pyOpenSSL security patch for openSUSE addressing improper input handling issues leading to data truncation.
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%20covered

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

Package List

* SUSE Linux Enterprise Micro for Rancher 5.3 (noarch)

* python3-pyOpenSSL-21.0.0-150400.13.1

* SUSE Linux Enterprise Micro 5.3 (noarch)

* python3-pyOpenSSL-21.0.0-150400.13.1

* openSUSE Leap 15.4 (noarch)

* python3-pyOpenSSL-21.0.0-150400.13.1

* SUSE Linux Enterprise Micro for Rancher 5.4 (noarch)

* python3-pyOpenSSL-21.0.0-150400.13.1

* SUSE Linux Enterprise Micro 5.4 (noarch)

* python3-pyOpenSSL-21.0.0-150400.13.1

* SUSE Linux Enterprise Micro 5.5 (noarch)

* python3-pyOpenSSL-21.0.0-150400.13.1

* Basesystem Module 15-SP7 (noarch)

* python3-pyOpenSSL-21.0.0-150400.13.1

References

* bsc#1262803

## References:

* https://www.suse.com/security/cve/CVE-2026-40475.html

* https://bugzilla.suse.com/show_bug.cgi?id=1262803

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2259-1
Release Date: 2026-06-03T15:31:51Z
Affected Products: * Basesystem Module 15-SP7 * openSUSE Leap 15.4 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Micro for Rancher 5.3 * SUSE Linux Enterprise Micro for Rancher 5.4 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory moderate input handling OpenSUSE data truncation python3-pyOpenSSL

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.