SUSE-SU-2026:0299-1: moderate: Security update for python311
SLE-SECURITY-UPDATES
null at suse.de
Tue Jan 27 08:30:05 UTC 2026
# Security update for python311
Announcement ID: SUSE-SU-2026:0299-1
Release Date: 2026-01-26T16:39:25Z
Rating: moderate
References:
* bsc#1254400
* bsc#1254401
* bsc#1254997
Cross-References:
* CVE-2025-12084
* CVE-2025-13836
* CVE-2025-13837
CVSS scores:
* CVE-2025-12084 ( SUSE ): 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-2025-12084 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
* CVE-2025-12084 ( 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-2025-12084 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2025-13836 ( SUSE ): 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:L/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-2025-13836 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
* CVE-2025-13836 ( 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:L/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-2025-13836 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
* CVE-2025-13837 ( SUSE ): 2.1
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:L/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-2025-13837 ( SUSE ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2025-13837 ( NVD ): 2.1
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:L/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-2025-13837 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products:
* openSUSE Leap 15.4
* Public Cloud Module 15-SP4
* SUSE Linux Enterprise High Performance Computing 15 SP4
* SUSE Linux Enterprise High Performance Computing 15 SP5
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
* SUSE Linux Enterprise Server 15 SP4
* SUSE Linux Enterprise Server 15 SP4 LTSS
* SUSE Linux Enterprise Server 15 SP5
* SUSE Linux Enterprise Server 15 SP5 LTSS
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
* SUSE Manager Proxy 4.3
* SUSE Manager Retail Branch Server 4.3
* SUSE Manager Server 4.3
An update that solves three vulnerabilities can now be installed.
## Description:
This update for python311 fixes the following issues:
* CVE-2025-12084: prevent quadratic behavior in node ID cache clearing
(bsc#1254997).
* CVE-2025-13836: prevent reading an HTTP response from a server, if no read
amount is specified, with using Content-Length per default as the length
(bsc#1254400).
* CVE-2025-13837: protect against OOM when loading malicious content
(bsc#1254401).
## 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:
* openSUSE Leap 15.4
zypper in -t patch SUSE-2026-299=1
* Public Cloud Module 15-SP4
zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-299=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-299=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-299=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-299=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-299=1
* SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-299=1
* SUSE Linux Enterprise Server 15 SP5 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-299=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-299=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-299=1
## Package List:
* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
* python311-tools-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-testsuite-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-testsuite-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* openSUSE Leap 15.4 (x86_64)
* python311-base-32bit-3.11.14-150400.9.72.1
* python311-32bit-3.11.14-150400.9.72.1
* libpython3_11-1_0-32bit-3.11.14-150400.9.72.1
* libpython3_11-1_0-32bit-debuginfo-3.11.14-150400.9.72.1
* python311-32bit-debuginfo-3.11.14-150400.9.72.1
* python311-base-32bit-debuginfo-3.11.14-150400.9.72.1
* openSUSE Leap 15.4 (aarch64_ilp32)
* python311-64bit-3.11.14-150400.9.72.1
* libpython3_11-1_0-64bit-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-64bit-3.11.14-150400.9.72.1
* python311-base-64bit-3.11.14-150400.9.72.1
* python311-base-64bit-debuginfo-3.11.14-150400.9.72.1
* python311-64bit-debuginfo-3.11.14-150400.9.72.1
* Public Cloud Module 15-SP4 (aarch64 ppc64le s390x x86_64)
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
x86_64)
* python311-tools-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
x86_64)
* python311-tools-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
x86_64)
* python311-tools-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
x86_64)
* python311-tools-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
* SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
* python311-tools-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
* SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
* python311-tools-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
* python311-tools-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
* python311-tools-3.11.14-150400.9.72.1
* python311-doc-3.11.14-150400.9.72.1
* python311-dbm-3.11.14-150400.9.72.1
* python311-debuginfo-3.11.14-150400.9.72.1
* python311-idle-3.11.14-150400.9.72.1
* python311-tk-debuginfo-3.11.14-150400.9.72.1
* libpython3_11-1_0-debuginfo-3.11.14-150400.9.72.1
* python311-3.11.14-150400.9.72.1
* python311-curses-3.11.14-150400.9.72.1
* python311-doc-devhelp-3.11.14-150400.9.72.1
* libpython3_11-1_0-3.11.14-150400.9.72.1
* python311-base-3.11.14-150400.9.72.1
* python311-dbm-debuginfo-3.11.14-150400.9.72.1
* python311-curses-debuginfo-3.11.14-150400.9.72.1
* python311-base-debuginfo-3.11.14-150400.9.72.1
* python311-tk-3.11.14-150400.9.72.1
* python311-devel-3.11.14-150400.9.72.1
* python311-core-debugsource-3.11.14-150400.9.72.1
* python311-debugsource-3.11.14-150400.9.72.1
## References:
* https://www.suse.com/security/cve/CVE-2025-12084.html
* https://www.suse.com/security/cve/CVE-2025-13836.html
* https://www.suse.com/security/cve/CVE-2025-13837.html
* https://bugzilla.suse.com/show_bug.cgi?id=1254400
* https://bugzilla.suse.com/show_bug.cgi?id=1254401
* https://bugzilla.suse.com/show_bug.cgi?id=1254997
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