SUSE alert SUSE-SU-2026:0314-1 (python311)

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SUSE-SU-2026:0314-1: moderate: Security update for python311
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Wed, 28 Jan 2026 20:46:38 -0000
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<176963319854.9676.8638916752855115850@smelt2.prg2.suse.org>
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Article


# Security update for python311

Announcement ID: SUSE-SU-2026:0314-1  
Release Date: 2026-01-28T13:28:57Z  
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
  * CVE-2025-13837 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

  
Affected Products:

  * Basesystem Module 15-SP7
  * openSUSE Leap 15.6
  * Python 3 Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * 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 python311 fixes the following issues:

  * CVE-2025-12084: prevent quadratic behavior in node ID cache clearing
    (bsc#1254997).
  * CVE-2025-13836: prevent reading an HTTP response from a server, if no read
    amount is specified, with using Content-Length per default as the length
    (bsc#1254400).
  * CVE-2025-13837: protect against OOM when loading malicious content
    (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 15.6  
    zypper in -t patch SUSE-2026-314=1 openSUSE-SLE-15.6-2026-314=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-314=1

  * Python 3 Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-314=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * python311-tk-debuginfo-3.11.14-150600.3.41.2
    * python311-debuginfo-3.11.14-150600.3.41.2
    * python311-base-3.11.14-150600.3.41.2
    * python311-base-debuginfo-3.11.14-150600.3.41.2
    * python311-tk-3.11.14-150600.3.41.2
    * python311-devel-3.11.14-150600.3.41.2
    * libpython3_11-1_0-3.11.14-150600.3.41.2
    * python311-curses-debuginfo-3.11.14-150600.3.41.2
    * python311-doc-devhelp-3.11.14-150600.3.41.1
    * python311-testsuite-3.11.14-150600.3.41.2
    * python311-3.11.14-150600.3.41.2
    * python311-testsuite-debuginfo-3.11.14-150600.3.41.2
    * python311-idle-3.11.14-150600.3.41.2
    * python311-debugsource-3.11.14-150600.3.41.2
    * python311-dbm-3.11.14-150600.3.41.2
    * python311-doc-3.11.14-150600.3.41.1
    * python311-tools-3.11.14-150600.3.41.2
    * python311-core-debugsource-3.11.14-150600.3.41.2
    * python311-curses-3.11.14-150600.3.41.2
    * python311-dbm-debuginfo-3.11.14-150600.3.41.2
    * libpython3_11-1_0-debuginfo-3.11.14-150600.3.41.2
  * openSUSE Leap 15.6 (x86_64)
    * python311-base-32bit-debuginfo-3.11.14-150600.3.41.2
    * python311-32bit-debuginfo-3.11.14-150600.3.41.2
    * libpython3_11-1_0-32bit-3.11.14-150600.3.41.2
    * python311-32bit-3.11.14-150600.3.41.2
    * python311-base-32bit-3.11.14-150600.3.41.2
    * libpython3_11-1_0-32bit-debuginfo-3.11.14-150600.3.41.2
  * openSUSE Leap 15.6 (aarch64_ilp32)
    * python311-base-64bit-debuginfo-3.11.14-150600.3.41.2
    * python311-64bit-3.11.14-150600.3.41.2
    * python311-64bit-debuginfo-3.11.14-150600.3.41.2
    * libpython3_11-1_0-64bit-3.11.14-150600.3.41.2
    * python311-base-64bit-3.11.14-150600.3.41.2
    * libpython3_11-1_0-64bit-debuginfo-3.11.14-150600.3.41.2
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * python311-base-3.11.14-150600.3.41.2
    * python311-base-debuginfo-3.11.14-150600.3.41.2
    * python311-core-debugsource-3.11.14-150600.3.41.2
    * libpython3_11-1_0-3.11.14-150600.3.41.2
    * libpython3_11-1_0-debuginfo-3.11.14-150600.3.41.2
  * Python 3 Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * python311-tk-debuginfo-3.11.14-150600.3.41.2
    * python311-debuginfo-3.11.14-150600.3.41.2
    * python311-tools-3.11.14-150600.3.41.2
    * python311-core-debugsource-3.11.14-150600.3.41.2
    * python311-curses-3.11.14-150600.3.41.2
    * python311-debugsource-3.11.14-150600.3.41.2
    * python311-tk-3.11.14-150600.3.41.2
    * python311-dbm-debuginfo-3.11.14-150600.3.41.2
    * python311-devel-3.11.14-150600.3.41.2
    * python311-3.11.14-150600.3.41.2
    * python311-idle-3.11.14-150600.3.41.2
    * python311-curses-debuginfo-3.11.14-150600.3.41.2
    * python311-dbm-3.11.14-150600.3.41.2

## 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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