SUSE-SU-2026:0027-1: moderate: Security update for python3

SLE-SECURITY-UPDATES null at suse.de
Mon Jan 5 20:30:19 UTC 2026 


# Security update for python3

Announcement ID: SUSE-SU-2026:0027-1  
Release Date: 2026-01-05T12:50:14Z  
Rating: moderate  
References:

  * bsc#1254400
  * bsc#1254401
  * bsc#1254997

  
Cross-References:

  * CVE-2025-12084
  * CVE-2025-13836
  * CVE-2025-13837

  
CVSS scores:

  * CVE-2025-12084 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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-2025-12084 ( SUSE ):  4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2025-12084 ( NVD ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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-2025-12084 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-13836 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/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-2025-13836 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2025-13836 ( NVD ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/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-2025-13836 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  * CVE-2025-13837 ( SUSE ):  2.1
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:L/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-2025-13837 ( SUSE ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-13837 ( NVD ):  2.1
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:L/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

  
Affected Products:

  * Basesystem Module 15-SP7
  * Development Tools Module 15-SP7
  * openSUSE Leap 15.3
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Micro 5.2
  * SUSE Linux Enterprise Micro 5.3
  * SUSE Linux Enterprise Micro 5.4
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Micro for Rancher 5.2
  * 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

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for python3 fixes the following issues:

  * CVE-2025-12084: cpython: Fixed quadratic algorithm in xml.dom.minidom
    leading to denial of service (bsc#1254997)
  * CVE-2025-13836: Fixed default Content-Lenght read amount from HTTP response
    (bsc#1254400)
  * CVE-2025-13837: Fixed plistlib module denial of service (bsc#1254401)

## 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:

  * openSUSE Leap 15.3  
    zypper in -t patch SUSE-2026-27=1

  * openSUSE Leap 15.6  
    zypper in -t patch openSUSE-SLE-15.6-2026-27=1

  * SUSE Linux Enterprise Micro for Rancher 5.3  
    zypper in -t patch SUSE-SLE-Micro-5.3-2026-27=1

  * SUSE Linux Enterprise Micro 5.3  
    zypper in -t patch SUSE-SLE-Micro-5.3-2026-27=1

  * SUSE Linux Enterprise Micro for Rancher 5.4  
    zypper in -t patch SUSE-SLE-Micro-5.4-2026-27=1

  * SUSE Linux Enterprise Micro 5.4  
    zypper in -t patch SUSE-SLE-Micro-5.4-2026-27=1

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-27=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-27=1

  * Development Tools Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-27=1

  * SUSE Linux Enterprise Micro 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-27=1

  * SUSE Linux Enterprise Micro for Rancher 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-27=1

## Package List:

  * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
    * python3-dbm-3.6.15-150300.10.103.1
    * python3-doc-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-devel-debuginfo-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-dbm-debuginfo-3.6.15-150300.10.103.1
    * python3-testsuite-3.6.15-150300.10.103.1
    * python3-tools-3.6.15-150300.10.103.1
    * python3-testsuite-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-devel-3.6.15-150300.10.103.1
    * python3-idle-3.6.15-150300.10.103.1
    * python3-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * python3-tk-debuginfo-3.6.15-150300.10.103.1
    * python3-doc-devhelp-3.6.15-150300.10.103.1
    * python3-curses-3.6.15-150300.10.103.1
    * python3-tk-3.6.15-150300.10.103.1
    * python3-curses-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * openSUSE Leap 15.3 (x86_64)
    * libpython3_6m1_0-32bit-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-32bit-3.6.15-150300.10.103.1
  * openSUSE Leap 15.3 (aarch64_ilp32)
    * libpython3_6m1_0-64bit-3.6.15-150300.10.103.1
    * libpython3_6m1_0-64bit-debuginfo-3.6.15-150300.10.103.1
  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
    * python3-dbm-3.6.15-150300.10.103.1
    * python3-doc-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-devel-debuginfo-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-dbm-debuginfo-3.6.15-150300.10.103.1
    * python3-testsuite-3.6.15-150300.10.103.1
    * python3-tools-3.6.15-150300.10.103.1
    * python3-testsuite-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-devel-3.6.15-150300.10.103.1
    * python3-idle-3.6.15-150300.10.103.1
    * python3-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * python3-tk-debuginfo-3.6.15-150300.10.103.1
    * python3-doc-devhelp-3.6.15-150300.10.103.1
    * python3-curses-3.6.15-150300.10.103.1
    * python3-tk-3.6.15-150300.10.103.1
    * python3-curses-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * openSUSE Leap 15.6 (x86_64)
    * libpython3_6m1_0-32bit-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-32bit-3.6.15-150300.10.103.1
  * SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
    * python3-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
    * python3-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
    * python3-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
    * python3-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    * python3-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * python3-3.6.15-150300.10.103.1
    * python3-dbm-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-dbm-debuginfo-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * python3-curses-debuginfo-3.6.15-150300.10.103.1
    * python3-tk-debuginfo-3.6.15-150300.10.103.1
    * python3-curses-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-tk-3.6.15-150300.10.103.1
    * python3-idle-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-devel-debuginfo-3.6.15-150300.10.103.1
    * python3-devel-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * python3-tools-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
  * SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
    * python3-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
    * python3-3.6.15-150300.10.103.1
    * python3-base-debuginfo-3.6.15-150300.10.103.1
    * python3-base-3.6.15-150300.10.103.1
    * python3-debuginfo-3.6.15-150300.10.103.1
    * libpython3_6m1_0-debuginfo-3.6.15-150300.10.103.1
    * python3-debugsource-3.6.15-150300.10.103.1
    * python3-core-debugsource-3.6.15-150300.10.103.1
    * libpython3_6m1_0-3.6.15-150300.10.103.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-12084.html
  * https://www.suse.com/security/cve/CVE-2025-13836.html
  * https://www.suse.com/security/cve/CVE-2025-13837.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1254400
  * https://bugzilla.suse.com/show_bug.cgi?id=1254401
  * https://bugzilla.suse.com/show_bug.cgi?id=1254997

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