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SUSE python311 Important Security Update 2026-21254-1 for Input Issues

suse
Calendar Grey April 23, 2026
Dist Suse Esm H88
SUSE updates python311 to address five security issues including input validation and path traversal risks for users.
An update that solves five vulnerabilities can now be installed.

Summary

## This update for python311 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-2026-3479: improper resource argument validation in `pkgutil.get_data()` can lead to path traversal (bsc#1259989). * 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:

Topics%20covered

Topics Covered

security advisory SuSE important input validation path traversal python311

References

* bsc#1259611

* bsc#1259734

* bsc#1259735

* bsc#1259989

* bsc#1260026

Cross-

* CVE-2025-13462

* CVE-2026-3479

* 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-2026-3479 ( SUSE ): 2.0

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

* CVE-2026-3479 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

* CVE-2026-3479 ( NVD ): 0.0

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:21254-1
Release Date: 2026-04-16T13:24:01Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important input validation path traversal python311

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