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openSUSE Leap 15.3 python39 Important Input Validation Issues 2026-1296-1

opensuse
Calendar Grey April 13, 2026
Dist Opensuse Esm H88
Update for openSUSE addresses important issues in python39, enhancing security by fixing multiple vulnerabilities.
An update that solves four vulnerabilities can now be installed.

Description

This update for python39 fixes the following issues:

* CVE-2025-13462: incorrect parsing of TarInfo when GNU long name and type

AREGTYPE are combined can lead to misinterpretation of tar archives

(bsc#1259611).

* CVE-2026-3644: incomplete control character validation in http.cookies can

lead to input validation bypass (bsc#1259734).

* CVE-2026-4224: parsing XML with deeply nested DTD content models can lead to

C stack overflow (bsc#1259735).

* CVE-2026-4519: failure to sanitize leading dashes in URLs in the

`webbrowser.open()` API can lead to web browser command line option

injection (bsc#1260026).

Topics%20covered

Topics Covered

security advisory important input validation stack overflow OpenSUSE python39

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 Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1296=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1296=1

* openSUSE Leap 15.3

zypper in -t patch SUSE-2026-1296=1

* openSUSE Leap 15.6

zypper in -t patch openSUSE-SLE-15.6-2026-1296=1

Package List

* SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)

* python39-curses-3.9.25-150300.4.99.1

* python39-base-3.9.25-150300.4.99.1

* python39-3.9.25-150300.4.99.1

* python39-dbm-3.9.25-150300.4.99.1

* libpython3_9-1_0-3.9.25-150300.4.99.1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)

* python39-curses-3.9.25-150300.4.99.1

* python39-base-3.9.25-150300.4.99.1

* python39-3.9.25-150300.4.99.1

* python39-dbm-3.9.25-150300.4.99.1

* libpython3_9-1_0-3.9.25-150300.4.99.1

* openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)

* python39-dbm-debuginfo-3.9.25-150300.4.99.1

* python39-doc-devhelp-3.9.25-150300.4.99.1

* python39-base-debuginfo-3.9.25-150300.4.99.1

* python39-debuginfo-3.9.25-150300.4.99.1

* libpython3_9-1_0-3.9.25-150300.4.99.1

* python39-tk-3.9.25-150300.4.99.1

* python39-curses-debuginfo-3.9.25-150300.4.99.1

* python39-base-3.9.25-150300.4.99.1

* python39-testsuite-debuginfo-3.9.25-150300.4.99.1

* python39-doc-3.9.25-150300.4.99.1

*...

Read the Full Advisory

References

* bsc#1259611

* bsc#1259734

* bsc#1259735

* bsc#1260026

## References:

* https://www.suse.com/security/cve/CVE-2025-13462.html

* https://www.suse.com/security/cve/CVE-2026-3644.html

* https://www.suse.com/security/cve/CVE-2026-4224.html

* https://www.suse.com/security/cve/CVE-2026-4519.html

* https://bugzilla.suse.com/show_bug.cgi?id=1259611

* https://bugzilla.suse.com/show_bug.cgi?id=1259734

* https://bugzilla.suse.com/show_bug.cgi?id=1259735

* https://bugzilla.suse.com/show_bug.cgi?id=1260026

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1296-1
Release Date: 2026-04-13T12:32:58Z
Affected Products: * openSUSE Leap 15.3 * openSUSE Leap 15.6 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP5

Topics%20covered

Topics Covered

security advisory important input validation stack overflow OpenSUSE python39

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