Security update for python3

Announcement ID:	SUSE-SU-2026:1385-1
Release Date:	2026-04-16T09:16:55Z
Rating:	important
References:	bsc#1259611 bsc#1259734 bsc#1259735 bsc#1259989 bsc#1260026
Cross-References:	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 CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/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-2026-4224 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-4224 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-4224 ( NVD ): 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/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-2026-4519 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:L/SI:H/SA:N CVE-2026-4519 ( SUSE ): 6.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:N CVE-2026-4519 ( NVD ): 7.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/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-2026-4519 ( NVD ): 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server 12 SP5 LTSS SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves five vulnerabilities can now be installed.

Description:

This update for python3 fixes the following issues:

• CVE-2025-13462: incorrect parsing of TarInfo header when GNU long name and type AREGTYPE are combined (bsc#1259611).
• CVE-2026-3479: improper resource argument validation can allow path traversal (bsc#1259989).
• CVE-2026-3644: incomplete control character validation in http.cookies (bsc#1259734).
• CVE-2026-4224: C stack overflow when parsing XML with deeply nested DTD content models (bsc#1259735).
• CVE-2026-4519: leading dashes in URLs are accepted by the webbrowser.open() API and allow for 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:

• SUSE Linux Enterprise Server 12 SP5 LTSS
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-1385=1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-1385=1

Package List:

• SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
  • python3-tk-debuginfo-3.4.10-25.180.1
  • libpython3_4m1_0-debuginfo-3.4.10-25.180.1
  • python3-debugsource-3.4.10-25.180.1
  • python3-base-debuginfo-3.4.10-25.180.1
  • python3-tk-3.4.10-25.180.1
  • python3-devel-3.4.10-25.180.1
  • python3-debuginfo-3.4.10-25.180.1
  • python3-base-debugsource-3.4.10-25.180.1
  • python3-3.4.10-25.180.1
  • libpython3_4m1_0-3.4.10-25.180.1
  • python3-curses-debuginfo-3.4.10-25.180.1
  • python3-curses-3.4.10-25.180.1
  • python3-base-3.4.10-25.180.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (ppc64le s390x x86_64)
  • python3-devel-debuginfo-3.4.10-25.180.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (s390x x86_64)
  • python3-base-debuginfo-32bit-3.4.10-25.180.1
  • libpython3_4m1_0-debuginfo-32bit-3.4.10-25.180.1
  • libpython3_4m1_0-32bit-3.4.10-25.180.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
  • python3-tk-debuginfo-3.4.10-25.180.1
  • libpython3_4m1_0-debuginfo-3.4.10-25.180.1
  • python3-debugsource-3.4.10-25.180.1
  • python3-base-debuginfo-3.4.10-25.180.1
  • libpython3_4m1_0-debuginfo-32bit-3.4.10-25.180.1
  • python3-base-debuginfo-32bit-3.4.10-25.180.1
  • python3-devel-3.4.10-25.180.1
  • python3-tk-3.4.10-25.180.1
  • python3-debuginfo-3.4.10-25.180.1
  • python3-base-debugsource-3.4.10-25.180.1
  • python3-3.4.10-25.180.1
  • libpython3_4m1_0-3.4.10-25.180.1
  • python3-curses-debuginfo-3.4.10-25.180.1
  • python3-curses-3.4.10-25.180.1
  • libpython3_4m1_0-32bit-3.4.10-25.180.1
  • python3-devel-debuginfo-3.4.10-25.180.1
  • python3-base-3.4.10-25.180.1

References:

• https://www.suse.com/security/cve/CVE-2025-13462.html
• https://www.suse.com/security/cve/CVE-2026-3479.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=1259989
• https://bugzilla.suse.com/show_bug.cgi?id=1260026