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openSUSE Leap 15.4 Python311 Moderate Update DoS Issue SUSE-2026-0299-1

opensuse
Calendar Grey January 27, 2026
Dist Opensuse Esm H88
Update resolves three vulnerabilities in python311 for openSUSE, ensuring enhanced security and system stability.
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).

Topics%20covered

Topics Covered

security advisory moderate DoS vulnerability OpenSUSE python311

Patch

## 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...

Read the Full Advisory

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)

*...

Read the Full Advisory

References

* bsc#1254400

* bsc#1254401

* bsc#1254997

## 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

Announcement ID: SUSE-SU-2026:0299-1
Release Date: 2026-01-26T16:39:25Z
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

Topics%20covered

Topics Covered

security advisory moderate DoS vulnerability OpenSUSE python311

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