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SUSE alert SUSE-SU-2026:23212-1 (python311)



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


To:
              sle-security-updates@lists.suse.com


Subject:
              SUSE-SU-2026:23212-1: important: Security update for python311


Date:
              Tue, 25 Aug 2026 12:31:09 -0000


Message-ID:
              <178766106968.2178.15799760833398445117@faebc920c5aa>


# Security update for python311

Announcement ID: SUSE-SU-2026:23212-1  
Release Date: 2026-08-18T12:04:24Z  
Rating: important  
References:

  * bsc#1258364
  * bsc#1261969
  * bsc#1262098
  * bsc#1262319
  * bsc#1262654
  * bsc#1263083
  * bsc#1264962
  * bsc#1265268
  * bsc#1267581
  * bsc#1267821
  * bsc#1268375
  * bsc#1268977
  * bsc#1269066
  * bsc#1269788
  * bsc#1269959
  * bsc#1271192

  
Cross-References:

  * CVE-2026-0864
  * CVE-2026-11940
  * CVE-2026-11972
  * CVE-2026-1502
  * CVE-2026-15308
  * CVE-2026-3276
  * CVE-2026-4360
  * CVE-2026-4786
  * CVE-2026-6019
  * CVE-2026-6100
  * CVE-2026-7210
  * CVE-2026-7774
  * CVE-2026-8328

  
CVSS scores:

  * CVE-2026-0864 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-0864 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-0864 ( NVD ):  4.1

CVSS:4.0/AV:L/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-2026-0864 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-11940 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-11940 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-11940 ( NVD ):  7.8

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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-2026-11972 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-11972 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-11972 ( NVD ):  8.2

CVSS:4.0/AV:N/AC:L/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
  * 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-2026-15308 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-15308 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-15308 ( NVD ):  8.7

CVSS:4.0/AV:N/AC:L/AT:N/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
  * CVE-2026-15308 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-3276 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-3276 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-3276 ( 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-2026-4360 ( SUSE ):  2.0
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-4360 ( SUSE ):  2.5 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
  * CVE-2026-4360 ( NVD ):  2.0

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/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-2026-4360 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * 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
  * CVE-2026-7210 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-7210 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-7210 ( NVD ):  6.3

CVSS:4.0/AV:N/AC:H/AT:N/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-2026-7210 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-7774 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-7774 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-7774 ( NVD ):  6.9

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/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-2026-8328 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-8328 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-8328 ( NVD ):  5.9

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/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

  
Affected Products:

  * SUSE Linux Micro 6.0

  
  
An update that solves 13 vulnerabilities and has three fixes can now be
installed.

## Description:

This update for python311 fixes the following issues:

Security issues fixed:

  * CVE-2026-0864: improper handling of line-ending characters can lead to
    configuration file injection when the `configparser` module is used
    (bsc#1269066).
  * CVE-2026-1502: HTTP client proxy tunnel headers not validated for CR/LF
    (bsc#1261969).
  * CVE-2026-3276: quadratic complexity in `unicodedata.normalize()` can lead to
    DoS when processing specially crafted Unicode input (bsc#1267581).
  * CVE-2026-4360: in the Tarfile.extract() function, the filter parameter is
    not passed properly when extracting hardlinks (bsc#1269959).
  * CVE-2026-4786: Incomplete mitigation of %action expansion for command
    injection to webbrowser.open() (bsc#1262319).
  * CVE-2026-6019: BaseCookie.js_output() does not neutralize embedded
    characters (bsc#1262654).
  * CVE-2026-6100: Arbitrary code execution or information disclosure via use-
    after-free in decompression modules (bsc#1262098).
  * CVE-2026-7210: `xml.parsers.expat` and `xml.etree.ElementTree` use
    insufficient entropy for Expat hash-flooding protection (bsc#1264962).
  * CVE-2026-7774: `tarfile.data_filter` path traversal bypass allows writing
    outside the extraction directory (bsc#1267821).
  * CVE-2026-8328: `ftpcp()` does not use actual peer address and trusts server-
    supplied PASV host address (bsc#1265268).
  * CVE-2026-11940: tarfile extraction filter bypass via a crafted archive
    allows escaping the destination directory and enables arbitrary file reads
    and writes (bsc#1268977).
  * CVE-2026-11972: infinite loop due to improper EOF handling in the tarfile
    module streaming mode can lead to DoS (bsc#1269788).
  * CVE-2026-15308: Incremental HTMLParser allows CPU-exhaustion DoS via
    repeated unterminated markup declarations (bsc#1271192).

Non security issues fixed:

  * Regression in `http.cookies` (bsc#1263083).
  * udplite was removed -> python fails in tests (bsc#1268375).
  * Conflicts between different versions of Python (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 Micro 6.0  
    zypper in -t patch SUSE-SLE-Micro-6.0-853=1

## Package List:

  * SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
    * python311-debugsource-3.11.15-5.1
    * python311-base-3.11.15-5.1
    * libpython3_11-1_0-3.11.15-5.1
    * python311-curses-debuginfo-3.11.15-5.1
    * python311-debuginfo-3.11.15-5.1
    * python311-base-debuginfo-3.11.15-5.1
    * python311-curses-3.11.15-5.1
    * python311-core-debugsource-3.11.15-5.1
    * python311-3.11.15-5.1
    * libpython3_11-1_0-debuginfo-3.11.15-5.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-0864.html
  * https://www.suse.com/security/cve/CVE-2026-11940.html
  * https://www.suse.com/security/cve/CVE-2026-11972.html
  * https://www.suse.com/security/cve/CVE-2026-1502.html
  * https://www.suse.com/security/cve/CVE-2026-15308.html
  * https://www.suse.com/security/cve/CVE-2026-3276.html
  * https://www.suse.com/security/cve/CVE-2026-4360.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://www.suse.com/security/cve/CVE-2026-7210.html
  * https://www.suse.com/security/cve/CVE-2026-7774.html
  * https://www.suse.com/security/cve/CVE-2026-8328.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1258364
  * 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
  * https://bugzilla.suse.com/show_bug.cgi?id=1263083
  * https://bugzilla.suse.com/show_bug.cgi?id=1264962
  * https://bugzilla.suse.com/show_bug.cgi?id=1265268
  * https://bugzilla.suse.com/show_bug.cgi?id=1267581
  * https://bugzilla.suse.com/show_bug.cgi?id=1267821
  * https://bugzilla.suse.com/show_bug.cgi?id=1268375
  * https://bugzilla.suse.com/show_bug.cgi?id=1268977
  * https://bugzilla.suse.com/show_bug.cgi?id=1269066
  * https://bugzilla.suse.com/show_bug.cgi?id=1269788
  * https://bugzilla.suse.com/show_bug.cgi?id=1269959
  * https://bugzilla.suse.com/show_bug.cgi?id=1271192





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