SUSE-SU-2026:1818-1: important: Security update for python39

SLE-UPDATES null at suse.de
Wed May 13 16:31:30 UTC 2026 

# Security update for python39

Announcement ID: SUSE-SU-2026:1818-1  
Release Date: 2026-05-12T07:58:54Z  
Rating: important  
References:

  * bsc#1258364
  * bsc#1259989
  * bsc#1261969
  * bsc#1261970
  * bsc#1262098
  * bsc#1262319
  * bsc#1262654

  
Cross-References:

  * CVE-2026-1502
  * CVE-2026-3446
  * CVE-2026-3479
  * 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-2026-3479 ( SUSE ):  2.0
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-3479 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-3479 ( NVD ):  0.0
    CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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-2026-6100 ( 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:

  * openSUSE Leap 15.3
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5

  
  
An update that solves six vulnerabilities and has one security fix can now be
installed.

## Description:

This update for python39 fixes the following issues:

Security issues fixed:

  * 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 and
    ignores other information that could be processed (bsc#1261970).
  * CVE-2026-3479: improper resource argument validation in `pkgutil.get_data()`
    can lead to path traversal (bsc#1259989).
  * CVE-2026-4786: URLs prefixed with `%action` can pass the dash-prefix safety
    check and allow for command injection (bsc#1262319).
  * CVE-2026-6019: `BaseCookie.js_output()` does not neutralize characters in
    cookie values embedded in JS (bsc#1262654).
  * CVE-2026-6100: use-after-free in `lzma.LZMADecompressor`,
    `bz2.BZ2Decompressor`, and `gzip.GzipFile` when process is under memory
    pressure(bsc#1262098).

Other updates and bugfixes:

  * Rewrite structure of Python interpreter packages. `python3*` symbols should
    be now provided by real python3 packages and its subpackages instead of the
    virtual provides (bsc#1258364).

## 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:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1818=1

  * openSUSE Leap 15.3  
    zypper in -t patch SUSE-2026-1818=1

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1818=1

## Package List:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * python39-dbm-3.9.25-150300.4.106.1
    * python39-base-3.9.25-150300.4.106.1
    * python39-3.9.25-150300.4.106.1
    * libpython3_9-1_0-3.9.25-150300.4.106.1
    * python39-curses-3.9.25-150300.4.106.1
  * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
    * python39-dbm-3.9.25-150300.4.106.1
    * python39-testsuite-3.9.25-150300.4.106.1
    * python39-base-3.9.25-150300.4.106.1
    * python39-tools-3.9.25-150300.4.106.1
    * python39-curses-debuginfo-3.9.25-150300.4.106.1
    * python39-core-debugsource-3.9.25-150300.4.106.1
    * python39-debuginfo-3.9.25-150300.4.106.1
    * python39-testsuite-debuginfo-3.9.25-150300.4.106.1
    * python39-tk-debuginfo-3.9.25-150300.4.106.1
    * python39-doc-3.9.25-150300.4.106.1
    * python39-debugsource-3.9.25-150300.4.106.1
    * python39-doc-devhelp-3.9.25-150300.4.106.1
    * python39-idle-3.9.25-150300.4.106.1
    * python39-dbm-debuginfo-3.9.25-150300.4.106.1
    * python39-base-debuginfo-3.9.25-150300.4.106.1
    * python39-3.9.25-150300.4.106.1
    * python39-devel-3.9.25-150300.4.106.1
    * libpython3_9-1_0-debuginfo-3.9.25-150300.4.106.1
    * python39-curses-3.9.25-150300.4.106.1
    * libpython3_9-1_0-3.9.25-150300.4.106.1
    * python39-tk-3.9.25-150300.4.106.1
  * openSUSE Leap 15.3 (x86_64)
    * libpython3_9-1_0-32bit-3.9.25-150300.4.106.1
    * python39-32bit-debuginfo-3.9.25-150300.4.106.1
    * python39-32bit-3.9.25-150300.4.106.1
    * python39-base-32bit-3.9.25-150300.4.106.1
    * libpython3_9-1_0-32bit-debuginfo-3.9.25-150300.4.106.1
    * python39-base-32bit-debuginfo-3.9.25-150300.4.106.1
  * openSUSE Leap 15.3 (aarch64_ilp32)
    * python39-64bit-3.9.25-150300.4.106.1
    * libpython3_9-1_0-64bit-debuginfo-3.9.25-150300.4.106.1
    * libpython3_9-1_0-64bit-3.9.25-150300.4.106.1
    * python39-base-64bit-debuginfo-3.9.25-150300.4.106.1
    * python39-base-64bit-3.9.25-150300.4.106.1
    * python39-64bit-debuginfo-3.9.25-150300.4.106.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * python39-dbm-3.9.25-150300.4.106.1
    * python39-base-3.9.25-150300.4.106.1
    * python39-3.9.25-150300.4.106.1
    * python39-curses-3.9.25-150300.4.106.1
    * libpython3_9-1_0-3.9.25-150300.4.106.1

## 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-2026-3479.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=1258364
  * https://bugzilla.suse.com/show_bug.cgi?id=1259989
  * 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

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