SUSE-SU-2026:4401-1: moderate: Security update for python313

SLE-SECURITY-UPDATES null at suse.de
Wed Sep 30 16:33:13 UTC 2026 

# Security update for python313

Announcement ID: SUSE-SU-2026:4401-1  
Release Date: 2026-09-30T08:56:07Z  
Rating: moderate  
References:

  * bsc#1258364
  * bsc#1267974
  * bsc#1273099
  * bsc#1273148
  * bsc#1274683
  * bsc#1276226

  
Cross-References:

  * CVE-2026-17084
  * CVE-2026-18503
  * CVE-2026-6879
  * CVE-2026-9669

  
CVSS scores:

  * CVE-2026-17084 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/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-2026-17084 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-17084 ( NVD ):  6.0
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/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-2026-18503 ( SUSE ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-18503 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2026-18503 ( NVD ):  2.4
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/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-2026-6879 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-6879 ( SUSE ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-6879 ( NVD ):  2.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/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-2026-9669 ( SUSE ):  5.7
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-9669 ( SUSE ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-9669 ( NVD ):  8.2
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/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

  
Affected Products:

  * Python 3 Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves four vulnerabilities and has two security fixes can now be
installed.

## Description:

This update for python313 fixes the following issues:

Security issues fixed:

  * CVE-2026-6879: quadratic behavior in `xml.etree.ElementPath` index
    predicates can lead to a denial of service via high CPU usage (bsc#1273148).
  * CVE-2026-9669: crafted input can cause a stack buffer overflow
    (bsc#1267974).
  * CVE-2026-17084: [Security-announce][] StringPrep algorithm considered
    (bsc#1276226).
  * CVE-2026-18503: attacker-controlled CSV samples can trigger super-linear
    regular-expression work during dialect sniffing and consume significant CPU
    (bsc#1274683).

Non security issue fixed:

  * Conflicts between different versions of Python (bsc#1258364).
  * Updated to version 3.13.15

## 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:

  * Python 3 Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-4401

## Package List:

  * Python 3 Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * libpython3_13-1_0-3.13.15-150700.4.56.1
    * python313-tk-3.13.15-150700.4.56.1
    * python313-core-debugsource-3.13.15-150700.4.56.1
    * python313-3.13.15-150700.4.56.1
    * python313-debuginfo-3.13.15-150700.4.56.1
    * python313-debugsource-3.13.15-150700.4.56.1
    * python313-tools-3.13.15-150700.4.56.1
    * python313-base-3.13.15-150700.4.56.1
    * python313-dbm-3.13.15-150700.4.56.1
    * python313-curses-3.13.15-150700.4.56.1
    * python313-idle-3.13.15-150700.4.56.1
    * python313-curses-debuginfo-3.13.15-150700.4.56.1
    * python313-tk-debuginfo-3.13.15-150700.4.56.1
    * python313-dbm-debuginfo-3.13.15-150700.4.56.1
    * python313-base-debuginfo-3.13.15-150700.4.56.1
    * libpython3_13-1_0-debuginfo-3.13.15-150700.4.56.1
    * python313-devel-3.13.15-150700.4.56.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-17084.html
  * https://www.suse.com/security/cve/CVE-2026-18503.html
  * https://www.suse.com/security/cve/CVE-2026-6879.html
  * https://www.suse.com/security/cve/CVE-2026-9669.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1258364
  * https://bugzilla.suse.com/show_bug.cgi?id=1267974
  * https://bugzilla.suse.com/show_bug.cgi?id=1273099
  * https://bugzilla.suse.com/show_bug.cgi?id=1273148
  * https://bugzilla.suse.com/show_bug.cgi?id=1274683
  * https://bugzilla.suse.com/show_bug.cgi?id=1276226

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