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SUSE alert SUSE-SU-2026:3104-1 (python311)



From:
              OPENSUSE-SECURITY-UPDATES <null@suse.de>


To:
              security-announce@lists.opensuse.org


Subject:
              SUSE-SU-2026:3104-1: important: Security update for python311


Date:
              Fri, 17 Jul 2026 20:31:42 -0000


Message-ID:
              <178432030226.935.99626092969863991@f4f3e2688bac>


Archive-link:
              Article


# Security update for python311

Announcement ID: SUSE-SU-2026:3104-1  
Release Date: 2026-07-17T13:31:49Z  
Rating: important  
References:

  * bsc#1261969
  * bsc#1262098
  * bsc#1262319
  * bsc#1262654

  
Cross-References:

  * CVE-2026-1502
  * 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-2026-4786 ( 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-2026-4786 ( NVD ):  7.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
  * 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
  * CVE-2026-6100 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves four vulnerabilities can now be installed.

## Description:

This update for python311 fixes the following issues

  * CVE-2026-1502: CR/LF bytes not rejected by HTTP client proxy tunnel headers
    or host (bsc#1261969).
  * CVE-2026-4786: URLs containing `%action` can bypass mitigation that allows
    command injection via the `webbrowser.open()` API (bsc#1262319).
  * CVE-2026-6019: HTML parser-sensitive sequence not neutralized by
    `http.cookies.Morsel.js_output()` (bsc#1262654).
  * CVE-2026-6100: use-after-free in decompression modules when a memory
    allocation fails with a `MemoryError` and the decompression instance is re-
    used (bsc#1262098).

## 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-SP7-2026-3104=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3104=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-3104=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-3104=1

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-3104=1

## Package List:

  * openSUSE Leap 15.6 (aarch64_ilp32)
    * libpython3_11-1_0-64bit-3.11.15-150600.3.59.3
    * python311-base-64bit-debuginfo-3.11.15-150600.3.59.3
    * python311-64bit-3.11.15-150600.3.59.3
    * python311-base-64bit-3.11.15-150600.3.59.3
    * libpython3_11-1_0-64bit-debuginfo-3.11.15-150600.3.59.3
    * python311-64bit-debuginfo-3.11.15-150600.3.59.3
  * openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
    * python311-doc-devhelp-3.11.15-150600.3.59.1
    * python311-3.11.15-150600.3.59.3
    * python311-curses-3.11.15-150600.3.59.3
    * python311-core-debugsource-3.11.15-150600.3.59.3
    * python311-tk-debuginfo-3.11.15-150600.3.59.3
    * libpython3_11-1_0-debuginfo-3.11.15-150600.3.59.3
    * python311-testsuite-3.11.15-150600.3.59.3
    * python311-dbm-debuginfo-3.11.15-150600.3.59.3
    * python311-dbm-3.11.15-150600.3.59.3
    * python311-testsuite-debuginfo-3.11.15-150600.3.59.3
    * python311-base-3.11.15-150600.3.59.3
    * python311-curses-debuginfo-3.11.15-150600.3.59.3
    * libpython3_11-1_0-3.11.15-150600.3.59.3
    * python311-base-debuginfo-3.11.15-150600.3.59.3
    * python311-debugsource-3.11.15-150600.3.59.3
    * python311-tk-3.11.15-150600.3.59.3
    * python311-tools-3.11.15-150600.3.59.3
    * python311-idle-3.11.15-150600.3.59.3
    * python311-doc-3.11.15-150600.3.59.1
    * python311-debuginfo-3.11.15-150600.3.59.3
    * python311-devel-3.11.15-150600.3.59.3
  * openSUSE Leap 15.6 (x86_64)
    * python311-base-32bit-debuginfo-3.11.15-150600.3.59.3
    * python311-base-32bit-3.11.15-150600.3.59.3
    * libpython3_11-1_0-32bit-3.11.15-150600.3.59.3
    * python311-32bit-debuginfo-3.11.15-150600.3.59.3
    * python311-32bit-3.11.15-150600.3.59.3
    * libpython3_11-1_0-32bit-debuginfo-3.11.15-150600.3.59.3
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * python311-base-debuginfo-3.11.15-150600.3.59.3
    * python311-dbm-debuginfo-3.11.15-150600.3.59.3
    * python311-3.11.15-150600.3.59.3
    * python311-curses-3.11.15-150600.3.59.3
    * python311-dbm-3.11.15-150600.3.59.3
    * python311-debugsource-3.11.15-150600.3.59.3
    * libpython3_11-1_0-debuginfo-3.11.15-150600.3.59.3
    * python311-core-debugsource-3.11.15-150600.3.59.3
    * python311-tk-3.11.15-150600.3.59.3
    * python311-base-3.11.15-150600.3.59.3
    * python311-curses-debuginfo-3.11.15-150600.3.59.3
    * python311-tools-3.11.15-150600.3.59.3
    * python311-tk-debuginfo-3.11.15-150600.3.59.3
    * python311-idle-3.11.15-150600.3.59.3
    * libpython3_11-1_0-3.11.15-150600.3.59.3
    * python311-debuginfo-3.11.15-150600.3.59.3
    * python311-devel-3.11.15-150600.3.59.3
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * python311-base-debuginfo-3.11.15-150600.3.59.3
    * python311-debugsource-3.11.15-150600.3.59.3
    * python311-dbm-3.11.15-150600.3.59.3
    * python311-curses-3.11.15-150600.3.59.3
    * python311-dbm-debuginfo-3.11.15-150600.3.59.3
    * python311-3.11.15-150600.3.59.3
    * python311-core-debugsource-3.11.15-150600.3.59.3
    * python311-tk-3.11.15-150600.3.59.3
    * python311-base-3.11.15-150600.3.59.3
    * python311-curses-debuginfo-3.11.15-150600.3.59.3
    * python311-tk-debuginfo-3.11.15-150600.3.59.3
    * python311-tools-3.11.15-150600.3.59.3
    * libpython3_11-1_0-3.11.15-150600.3.59.3
    * python311-idle-3.11.15-150600.3.59.3
    * libpython3_11-1_0-debuginfo-3.11.15-150600.3.59.3
    * python311-debuginfo-3.11.15-150600.3.59.3
    * python311-devel-3.11.15-150600.3.59.3
  * Python 3 Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * python311-dbm-debuginfo-3.11.15-150600.3.59.3
    * python311-dbm-3.11.15-150600.3.59.3
    * python311-curses-3.11.15-150600.3.59.3
    * python311-3.11.15-150600.3.59.3
    * python311-debugsource-3.11.15-150600.3.59.3
    * python311-core-debugsource-3.11.15-150600.3.59.3
    * python311-tk-3.11.15-150600.3.59.3
    * python311-curses-debuginfo-3.11.15-150600.3.59.3
    * python311-tk-debuginfo-3.11.15-150600.3.59.3
    * python311-tools-3.11.15-150600.3.59.3
    * python311-idle-3.11.15-150600.3.59.3
    * python311-debuginfo-3.11.15-150600.3.59.3
    * python311-devel-3.11.15-150600.3.59.3
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * python311-base-debuginfo-3.11.15-150600.3.59.3
    * libpython3_11-1_0-debuginfo-3.11.15-150600.3.59.3
    * python311-core-debugsource-3.11.15-150600.3.59.3
    * python311-base-3.11.15-150600.3.59.3
    * libpython3_11-1_0-3.11.15-150600.3.59.3

## References:

  * https://www.suse.com/security/cve/CVE-2026-1502.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=1261969
  * 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





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