SUSE-SU-2026:0010-1: important: Security update for python-tornado6
SLE-SECURITY-UPDATES
null at suse.de
Mon Jan 5 16:31:13 UTC 2026
# Security update for python-tornado6
Announcement ID: SUSE-SU-2026:0010-1
Release Date: 2026-01-05T10:27:06Z
Rating: important
References:
* bsc#1254903
* bsc#1254904
* bsc#1254905
Cross-References:
* CVE-2025-67724
* CVE-2025-67725
* CVE-2025-67726
CVSS scores:
* CVE-2025-67724 ( SUSE ): 5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
* CVE-2025-67724 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
* CVE-2025-67724 ( NVD ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
* CVE-2025-67724 ( NVD ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
* CVE-2025-67725 ( SUSE ): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2025-67725 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2025-67725 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2025-67726 ( SUSE ): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2025-67726 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2025-67726 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
* openSUSE Leap 15.4
* openSUSE Leap 15.6
* Python 3 Module 15-SP7
* 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 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
An update that solves three vulnerabilities can now be installed.
## Description:
This update for python-tornado6 fixes the following issues:
* CVE-2025-67724: unescaped `reason` argument used in HTTP headers and in HTML
default error pages can be used by attackers to launch header injection or
XSS attacks (bsc#1254903).
* CVE-2025-67725: quadratic complexity of string concatenation operations used
by the `HTTPHeaders.add` method can lead to DoS when processing a
maliciously crafted HTTP request (bsc#1254905).
* CVE-2025-67726: quadratic complexity algorithm used in the `_parseparam`
function of `httputil.py` can lead to DoS when processing maliciously
crafted parameters in a `Content-Disposition` header (bsc#1254904).
## 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:
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-10=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-10=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-10=1
* SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-10=1
* SUSE Linux Enterprise Server 15 SP5 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-10=1
* SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-10=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-10=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-10=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-10=1
* openSUSE Leap 15.4
zypper in -t patch SUSE-2026-10=1
* openSUSE Leap 15.6
zypper in -t patch openSUSE-SLE-15.6-2026-10=1
* Python 3 Module 15-SP7
zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-10=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-10=1
## Package List:
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* Python 3 Module 15-SP7 (aarch64 ppc64le s390x x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
x86_64)
* python311-tornado6-6.3.2-150400.9.12.1
* python-tornado6-debugsource-6.3.2-150400.9.12.1
* python311-tornado6-debuginfo-6.3.2-150400.9.12.1
## References:
* https://www.suse.com/security/cve/CVE-2025-67724.html
* https://www.suse.com/security/cve/CVE-2025-67725.html
* https://www.suse.com/security/cve/CVE-2025-67726.html
* https://bugzilla.suse.com/show_bug.cgi?id=1254903
* https://bugzilla.suse.com/show_bug.cgi?id=1254904
* https://bugzilla.suse.com/show_bug.cgi?id=1254905
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