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openSUSE 15.3 python3 Important Security Issues 2026-0664-1

opensuse
Calendar Grey February 26, 2026
Dist Opensuse Esm H88
Critical update for openSUSE addressing six vulnerabilities in python3 to enhance system security. Install now!
An update that solves six vulnerabilities can now be installed.

Description

This update for python3 fixes the following issues:

* CVE-2025-11468: header injection when folding a long comment in an email

header containing exclusively unfoldable characters (bsc#1257029).

* CVE-2026-0672: HTTP header injection via user-controlled cookie values and

parameters when using http.cookies.Morsel (bsc#1257031).

* CVE-2026-0865: user-controlled header containing newlines can allow

injecting HTTP headers (bsc#1257042).

* CVE-2025-15366: user-controlled command can allow additional commands

injected using newlines (bsc#1257044).

* CVE-2025-15282: user-controlled data URLs parsed may allow injecting headers

(bsc#1257046).

* CVE-2025-15367: control characters may allow the injection of additional

commands (bsc#1257041).

Topics%20covered

Topics Covered

security advisory important command injection OpenSUSE header injection python3

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 15.3

zypper in -t patch SUSE-2026-664=1

* openSUSE Leap 15.6

zypper in -t patch openSUSE-SLE-15.6-2026-664=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-664=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-664=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-664=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-664=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-664=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-664=1

* Development Tools Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-664=1

* SUSE Linux Enterprise High Performance Computing ESPOS...

Read the Full Advisory

Package List

* openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)

* python3-curses-debuginfo-3.6.15-150300.10.106.1

* python3-core-debugsource-3.6.15-150300.10.106.1

* python3-doc-3.6.15-150300.10.106.1

* libpython3_6m1_0-3.6.15-150300.10.106.1

* python3-tk-3.6.15-150300.10.106.1

* python3-tools-3.6.15-150300.10.106.1

* python3-debuginfo-3.6.15-150300.10.106.1

* python3-base-debuginfo-3.6.15-150300.10.106.1

* python3-tk-debuginfo-3.6.15-150300.10.106.1

* python3-debugsource-3.6.15-150300.10.106.1

* libpython3_6m1_0-debuginfo-3.6.15-150300.10.106.1

* python3-testsuite-debuginfo-3.6.15-150300.10.106.1

* python3-dbm-3.6.15-150300.10.106.1

* python3-3.6.15-150300.10.106.1

* python3-testsuite-3.6.15-150300.10.106.1

* python3-dbm-debuginfo-3.6.15-150300.10.106.1

* python3-base-3.6.15-150300.10.106.1

* python3-doc-devhelp-3.6.15-150300.10.106.1

* python3-curses-3.6.15-150300.10.106.1

* python3-devel-debuginfo-3.6.15-150300.10.106.1

* python3-idle-3.6.15-150300.10.106.1

* python3-devel-3.6.15-150300.10.106.1

* openSUSE Leap...

Read the Full Advisory

References

* bsc#1257029

* bsc#1257031

* bsc#1257041

* bsc#1257042

* bsc#1257044

* bsc#1257046

## References:

* https://www.suse.com/security/cve/CVE-2025-11468.html

* https://www.suse.com/security/cve/CVE-2025-15282.html

* https://www.suse.com/security/cve/CVE-2025-15366.html

* https://www.suse.com/security/cve/CVE-2025-15367.html

* https://www.suse.com/security/cve/CVE-2026-0672.html

* https://www.suse.com/security/cve/CVE-2026-0865.html

* https://bugzilla.suse.com/show_bug.cgi?id=1257029

* https://bugzilla.suse.com/show_bug.cgi?id=1257031

* https://bugzilla.suse.com/show_bug.cgi?id=1257041

* https://bugzilla.suse.com/show_bug.cgi?id=1257042

* https://bugzilla.suse.com/show_bug.cgi?id=1257044

* https://bugzilla.suse.com/show_bug.cgi?id=1257046

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0664-1
Release Date: 2026-02-26T15:16:08Z
Affected Products: * Basesystem Module 15-SP7 * Development Tools Module 15-SP7 * openSUSE Leap 15.3 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP7 * 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 Micro 5.2 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Micro for Rancher 5.2 * SUSE Linux Enterprise Micro for Rancher 5.3 * SUSE Linux Enterprise Micro for Rancher 5.4 * SUSE Linux Enterprise Real Time 15 SP7 * 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 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory important command injection OpenSUSE header injection python3

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