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openSUSE Leap 15.6 python312 Important Security Fixes SUSE-SU-2026-1107-1

opensuse
Calendar Grey March 27, 2026
Dist Opensuse Esm H88
Update for openSUSE Leap 15.6 addresses multiple security issues in python312 that require immediate attention.
An update that solves 10 vulnerabilities can now be installed.

Description

This update for python312 fixes the following issues:

Update to Python 3.12.13:

* CVE-2025-6075: quadratic complexity in os.path.expandvars() (bsc#1252974).

* CVE-2025-11468: header injection with carefully crafted inputs

(bsc#1257029).

* CVE-2025-12084: quadratic complexity in xml.minidom node ID cache clearing

(bsc#1254997).

* CVE-2025-13836: potential memory denial of service in the http.client module

(bsc#1254400).

* CVE-2025-13837: potential memory denial of service in the plistlib module

(bsc#1254401).

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

(bsc#1257046).

* CVE-2026-0672: control characters in http.cookies.Morsel fields and values

(bsc#1257031).

* CVE-2026-0865: C0 control characters within wsgiref.headers.Headers fields,

values, and parameters (bsc#1257042).

* CVE-2026-1299: header injection when an email is serialized due to improper

newline quoting (bsc#1257181).

* CVE-2026-2297:...

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Topics%20covered

Topics Covered

security advisory important OpenSUSE header injection python312 memory denial

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 15.6

zypper in -t patch SUSE-2026-1107=1 openSUSE-SLE-15.6-2026-1107=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1107=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1107=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* python312-testsuite-3.12.13-150600.3.48.1

* libpython3_12-1_0-3.12.13-150600.3.48.1

* python312-dbm-3.12.13-150600.3.48.1

* python312-doc-devhelp-3.12.13-150600.3.48.1

* python312-curses-debuginfo-3.12.13-150600.3.48.1

* python312-base-3.12.13-150600.3.48.1

* python312-idle-3.12.13-150600.3.48.1

* python312-testsuite-debuginfo-3.12.13-150600.3.48.1

* python312-devel-3.12.13-150600.3.48.1

* python312-tools-3.12.13-150600.3.48.1

* python312-doc-3.12.13-150600.3.48.1

* python312-debugsource-3.12.13-150600.3.48.1

* python312-tk-3.12.13-150600.3.48.1

* python312-debuginfo-3.12.13-150600.3.48.1

* python312-dbm-debuginfo-3.12.13-150600.3.48.1

* python312-tk-debuginfo-3.12.13-150600.3.48.1

* python312-curses-3.12.13-150600.3.48.1

* libpython3_12-1_0-debuginfo-3.12.13-150600.3.48.1

* python312-base-debuginfo-3.12.13-150600.3.48.1

* python312-core-debugsource-3.12.13-150600.3.48.1

* python312-3.12.13-150600.3.48.1

* openSUSE Leap 15.6 (x86_64)

*...

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References

* bsc#1252974

* bsc#1254400

* bsc#1254401

* bsc#1254997

* bsc#1257029

* bsc#1257031

* bsc#1257042

* bsc#1257046

* bsc#1257181

* bsc#1259240

## References:

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

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

* https://www.suse.com/security/cve/CVE-2025-6075.html

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

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

* https://www.suse.com/security/cve/CVE-2026-1299.html

* https://www.suse.com/security/cve/CVE-2026-2297.html

* https://bugzilla.suse.com/show_bug.cgi?id=1252974

* 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

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

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

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1107-1
Release Date: 2026-03-27T09:04:10Z
Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP6

Topics%20covered

Topics Covered

security advisory important OpenSUSE header injection python312 memory denial

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