<div class="container">
<h1>Security update for python-tornado</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:1171-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-04-02T08:57:10Z</td>
</tr>
<tr>
<th>Rating:</th>
<td>important</td>
</tr>
<tr>
<th>References:</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1254905">bsc#1254905</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259553">bsc#1259553</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259630">bsc#1259630</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>
Cross-References:
</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-31958.html">CVE-2026-31958</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>CVSS scores:</th>
<td>
<ul class="list-group">
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-31958</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-31958</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-31958</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">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/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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-31958</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Basesystem Module 15-SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing LTSS 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing LTSS 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.2</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.3</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.4</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.5</li>
<li class="list-group-item">SUSE Linux Enterprise Micro for Rancher 5.2</li>
<li class="list-group-item">SUSE Linux Enterprise Micro for Rancher 5.3</li>
<li class="list-group-item">SUSE Linux Enterprise Micro for Rancher 5.4</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP4 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP7</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves one vulnerability and has two security fixes can now be installed.</p>
<h2>Description:</h2>
<p>This update for python-tornado fixes the following issues:</p>
<ul>
<li>CVE-2026-31958: parsing large multipart bodies with many parts can cause a denial of service (bsc#1259553).</li>
<li>incomplete validation of cookie attributes allows for injection of user-controlled values in other cookie attributes
(bsc#1259630).</li>
</ul>
<h2>Patch Instructions:</h2>
<p>
To install this SUSE update use the SUSE recommended
installation methods like YaST online_update or "zypper patch".<br/>
Alternatively you can run the command listed for your product:
</p>
<ul class="list-group">
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.5
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.5-2026-1171=1</code>
</li>
<li class="list-group-item">
Basesystem Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP4 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP5 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP6 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP6
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.2
<br/>
<code>zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro for Rancher 5.2
<br/>
<code>zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro for Rancher 5.3
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.3-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.3
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.3-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro for Rancher 5.4
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.4-2026-1171=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.4
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.4-2026-1171=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
<ul>
<li>python3-tornado-4.5.3-150000.3.19.1</li>
<li>python-tornado-debugsource-4.5.3-150000.3.19.1</li>
<li>python-tornado-debuginfo-4.5.3-150000.3.19.1</li>
<li>python3-tornado-debuginfo-4.5.3-150000.3.19.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-31958.html">https://www.suse.com/security/cve/CVE-2026-31958.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1254905">https://bugzilla.suse.com/show_bug.cgi?id=1254905</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259553">https://bugzilla.suse.com/show_bug.cgi?id=1259553</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259630">https://bugzilla.suse.com/show_bug.cgi?id=1259630</a>
</li>
</ul>
</div>