SUSE-SU-2026:2464-1: important: Security update for python313

SLE-UPDATES null at suse.de
Fri Jun 19 16:31:06 UTC 2026 

# Security update for python313

Announcement ID: SUSE-SU-2026:2464-1  
Release Date: 2026-06-19T09:44:33Z  
Rating: important  
References:

  * bsc#1211301
  * bsc#1261969
  * bsc#1261970
  * bsc#1262098
  * bsc#1262319
  * bsc#1262654
  * bsc#1263787

  
Cross-References:

  * CVE-2026-1502
  * CVE-2026-3446
  * CVE-2026-4786
  * CVE-2026-6019
  * CVE-2026-6100

  
CVSS scores:

  * CVE-2026-1502 ( SUSE ):  5.7
    CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-1502 ( SUSE ):  4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-1502 ( NVD ):  5.7
    CVSS:4.0/AV:N/AC:L/AT:P/PR:H/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-2026-3446 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-3446 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-3446 ( NVD ):  6.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/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-2026-4786 ( SUSE ):  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-2026-4786 ( SUSE ):  7.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
  * CVE-2026-4786 ( 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-2026-6019 ( SUSE ):  2.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/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-2026-6019 ( SUSE ):  3.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-6019 ( NVD ):  2.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/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-2026-6019 ( NVD ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-6100 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-6100 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-6100 ( NVD ):  9.1
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/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

  
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 five vulnerabilities and has two security fixes can now be
installed.

## Description:

This update for python313 fixes the following issues

Security issues:

  * CVE-2026-1502: HTTP client proxy tunnel headers not validated for CR/LF
    (bsc#1261969).
  * CVE-2026-3446: Base64 decoding stops at first padded quad by default
    (bsc#1261970).
  * CVE-2026-4786: [oss-security][] CPython: Incomplete mitigation of , %action
    expansion for command injection to webbrowser.open() (bsc#1262319).
  * CVE-2026-6019: `BaseCookie.js_output()` does not neutralize characters in
    cookie values embedded in JS (bsc#1262654).
  * CVE-2026-6100: Arbitrary code execution or information disclosure via use-
    after-free in decompression modules (bsc#1262098).

Non security issue:

  * Add missing BR `crypto-policies-scripts` (need for the fix of bsc#1211301).

## 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-SP7-2026-2464=1

## Package List:

  * Python 3 Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * python313-curses-3.13.13-150700.4.50.1
    * python313-tk-3.13.13-150700.4.50.1
    * python313-dbm-3.13.13-150700.4.50.1
    * python313-base-debuginfo-3.13.13-150700.4.50.1
    * python313-debuginfo-3.13.13-150700.4.50.1
    * python313-idle-3.13.13-150700.4.50.1
    * libpython3_13-1_0-debuginfo-3.13.13-150700.4.50.1
    * python313-core-debugsource-3.13.13-150700.4.50.1
    * python313-dbm-debuginfo-3.13.13-150700.4.50.1
    * python313-curses-debuginfo-3.13.13-150700.4.50.1
    * python313-tk-debuginfo-3.13.13-150700.4.50.1
    * python313-tools-3.13.13-150700.4.50.1
    * python313-debugsource-3.13.13-150700.4.50.1
    * python313-devel-3.13.13-150700.4.50.1
    * python313-3.13.13-150700.4.50.1
    * libpython3_13-1_0-3.13.13-150700.4.50.1
    * python313-base-3.13.13-150700.4.50.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-1502.html
  * https://www.suse.com/security/cve/CVE-2026-3446.html
  * https://www.suse.com/security/cve/CVE-2026-4786.html
  * https://www.suse.com/security/cve/CVE-2026-6019.html
  * https://www.suse.com/security/cve/CVE-2026-6100.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1211301
  * https://bugzilla.suse.com/show_bug.cgi?id=1261969
  * https://bugzilla.suse.com/show_bug.cgi?id=1261970
  * https://bugzilla.suse.com/show_bug.cgi?id=1262098
  * https://bugzilla.suse.com/show_bug.cgi?id=1262319
  * https://bugzilla.suse.com/show_bug.cgi?id=1262654
  * https://bugzilla.suse.com/show_bug.cgi?id=1263787

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