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openSUSE Python311 Important Memory Error Command Injection Fix 2026-3132-1

opensuse
Calendar Grey July 20, 2026
Scroller Opensuse
Four vulnerabilities in python311 resolved in important update for openSUSE, enhancing application security and stability.
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).

Topics%20covered

Topics Covered

security advisory important command injection memory error OpenSUSE http client

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:

* Public Cloud Module 15-SP4

zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-3132=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-3132=1

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-3132=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-3132=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-3132=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-3132=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch...

Read the Full Advisory

Package List

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64

x86_64)

* libpython3_11-1_0-3.11.15-150400.9.91.1

* python311-tools-3.11.15-150400.9.91.1

* python311-debuginfo-3.11.15-150400.9.91.1

* python311-tk-3.11.15-150400.9.91.1

* python311-doc-3.11.15-150400.9.91.1

* python311-idle-3.11.15-150400.9.91.1

* python311-doc-devhelp-3.11.15-150400.9.91.1

* python311-base-3.11.15-150400.9.91.1

* python311-3.11.15-150400.9.91.1

* libpython3_11-1_0-debuginfo-3.11.15-150400.9.91.1

* python311-debugsource-3.11.15-150400.9.91.1

* python311-dbm-debuginfo-3.11.15-150400.9.91.1

* python311-core-debugsource-3.11.15-150400.9.91.1

* python311-devel-3.11.15-150400.9.91.1

* python311-curses-3.11.15-150400.9.91.1

* python311-tk-debuginfo-3.11.15-150400.9.91.1

* python311-curses-debuginfo-3.11.15-150400.9.91.1

* python311-base-debuginfo-3.11.15-150400.9.91.1

* python311-dbm-3.11.15-150400.9.91.1

* openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64)

* libpython3_11-1_0-3.11.15-150400.9.91.1

*...

Read the Full Advisory

References

* bsc#1261969

* bsc#1262098

* bsc#1262319

* bsc#1262654

## 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3132-1
Release Date: 2026-07-20T13:56:06Z
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 important command injection memory error OpenSUSE http client

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