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ESB-2026.3243 PUBLISHED CVSS 7.5 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3243 Security update for python-tornado 7 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: python-tornado Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-31958 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-20261171-1 Comment: CVSS (Max): 7.5 CVE-2026-31958 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H EPSS (Max): 0.0% (8th) CVE-2026-31958 2026-04-02 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for python-tornado Announcement ID: SUSE-SU-2026:1171-1 Release Date: 2026-04-02T08:57:10Z Rating: important o bsc#1254905 References: o bsc#1259553 o bsc#1259630 Cross-References: o CVE-2026-31958 o CVE-2026-31958 ( 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 o CVE-2026-31958 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N /S:U/C:N/I:N/A:H o CVE-2026-31958 ( NVD ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/ CVSS scores: UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/ MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/ MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X o CVE-2026-31958 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o Basesystem Module 15-SP7 o SUSE Linux Enterprise Desktop 15 SP7 o SUSE Linux Enterprise High Performance Computing 15 SP4 o SUSE Linux Enterprise High Performance Computing 15 SP5 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 o SUSE Linux Enterprise Micro 5.2 o SUSE Linux Enterprise Micro 5.3 Affected o SUSE Linux Enterprise Micro 5.4 Products: o SUSE Linux Enterprise Micro 5.5 o SUSE Linux Enterprise Micro for Rancher 5.2 o SUSE Linux Enterprise Micro for Rancher 5.3 o SUSE Linux Enterprise Micro for Rancher 5.4 o SUSE Linux Enterprise Real Time 15 SP7 o SUSE Linux Enterprise Server 15 SP4 o SUSE Linux Enterprise Server 15 SP4 LTSS o SUSE Linux Enterprise Server 15 SP5 o SUSE Linux Enterprise Server 15 SP5 LTSS o SUSE Linux Enterprise Server 15 SP6 o SUSE Linux Enterprise Server 15 SP6 LTSS o SUSE Linux Enterprise Server 15 SP7 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 o SUSE Linux Enterprise Server for SAP Applications 15 SP6 o SUSE Linux Enterprise Server for SAP Applications 15 SP7 An update that solves one vulnerability and has two security fixes can now be installed. Description: This update for python-tornado fixes the following issues: o CVE-2026-31958: parsing large multipart bodies with many parts can cause a denial of service (bsc#1259553). o incomplete validation of cookie attributes allows for injection of user-controlled values in other cookie attributes (bsc#1259630). 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: o SUSE Linux Enterprise Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2026-1171=1 o Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1171=1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1171=1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1171=1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1171=1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1171=1 o SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1171=1 o SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1171=1 o SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1171=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1171=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1171=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1171=1 o SUSE Linux Enterprise Micro 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1171=1 o SUSE Linux Enterprise Micro for Rancher 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1171=1 o SUSE Linux Enterprise Micro for Rancher 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-1171=1 o SUSE Linux Enterprise Micro 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-1171=1 o SUSE Linux Enterprise Micro for Rancher 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-1171=1 o SUSE Linux Enterprise Micro 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-1171=1 Package List: o SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 o SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64) python3-tornado-4.5.3-150000.3.19.1 python-tornado-debugsource-4.5.3-150000.3.19.1 python-tornado-debuginfo-4.5.3-150000.3.19.1 python3-tornado-debuginfo-4.5.3-150000.3.19.1 References: o https://www.suse.com/security/cve/CVE-2026-31958.html o https://bugzilla.suse.com/show_bug.cgi?id=1254905 o https://bugzilla.suse.com/show_bug.cgi?id=1259553 o https://bugzilla.suse.com/show_bug.cgi?id=1259630 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
SUSEpython-tornado

Timeline

References

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