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SUSE Linux Enterprise Server Python39 Important Patch 2026-1296-1

suse
Calendar Grey April 13, 2026
Dist Suse Esm H88
An important update for python39 fixing four critical issues in SUSE distributions. Install recommended patches promptly.
An update that solves four vulnerabilities can now be installed.

Summary

## 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). ## 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:

Topics%20covered

Topics Covered

security advisory SuSE important input validation command injection python39

References

* bsc#1259611

* bsc#1259734

* bsc#1259735

* bsc#1260026

Cross-

* CVE-2025-13462

* CVE-2026-3644

* CVE-2026-4224

* CVE-2026-4519

CVSS scores:

* CVE-2025-13462 ( SUSE ): 2.0

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

* CVE-2025-13462 ( SUSE ): 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

* CVE-2025-13462 ( NVD ): 2.0

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-3644 ( SUSE ): 6.3

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

* CVE-2026-3644 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

* CVE-2026-3644 ( NVD ): 6.0

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1296-1
Release Date: 2026-04-13T12:32:58Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important input validation command injection python39

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