<div class="container">
<h1>Security update for python311</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:3104-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-07-17T13:31:49Z</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=1261969">bsc#1261969</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262098">bsc#1262098</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262319">bsc#1262319</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262654">bsc#1262654</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-2026-1502.html">CVE-2026-1502</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-4786.html">CVE-2026-4786</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-6019.html">CVE-2026-6019</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-6100.html">CVE-2026-6100</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-2026-1502</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-1502</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.9</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-1502</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/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-2026-4786</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.0</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/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-2026-4786</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4786</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.0</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/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-2026-4786</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6019</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">2.1</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/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-2026-6019</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">3.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6019</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">2.1</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/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-2026-6019</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6100</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">9.1</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6100</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6100</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.1</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/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-2026-6100</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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">openSUSE Leap 15.6</li>
<li class="list-group-item">Python 3 Module 15-SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP7</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 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 four vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for python311 fixes the following issues</p>
<ul>
<li>CVE-2026-1502: CR/LF bytes not rejected by HTTP client proxy tunnel headers or host (bsc#1261969).</li>
<li>CVE-2026-4786: URLs containing <code>%action</code> can bypass mitigation that allows command injection via the
<code>webbrowser.open()</code> API (bsc#1262319).</li>
<li>CVE-2026-6019: HTML parser-sensitive sequence not neutralized by <code>http.cookies.Morsel.js_output()</code> (bsc#1262654).</li>
<li>CVE-2026-6100: use-after-free in decompression modules when a memory allocation fails with a <code>MemoryError</code> and the
decompression instance is re-used (bsc#1262098).</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">
Python 3 Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-3104=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-2026-3104=1</code>
</li>
<li class="list-group-item">
Basesystem Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-3104=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-SP6-2026-3104=1</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.6
<br/>
<code>zypper in -t patch SUSE-2026-3104=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
openSUSE Leap 15.6 (aarch64_ilp32)
<ul>
<li>libpython3_11-1_0-64bit-3.11.15-150600.3.59.3</li>
<li>python311-base-64bit-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-64bit-3.11.15-150600.3.59.3</li>
<li>python311-base-64bit-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-64bit-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-64bit-debuginfo-3.11.15-150600.3.59.3</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
<ul>
<li>python311-doc-devhelp-3.11.15-150600.3.59.1</li>
<li>python311-3.11.15-150600.3.59.3</li>
<li>python311-curses-3.11.15-150600.3.59.3</li>
<li>python311-core-debugsource-3.11.15-150600.3.59.3</li>
<li>python311-tk-debuginfo-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-testsuite-3.11.15-150600.3.59.3</li>
<li>python311-dbm-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-dbm-3.11.15-150600.3.59.3</li>
<li>python311-testsuite-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-base-3.11.15-150600.3.59.3</li>
<li>python311-curses-debuginfo-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-3.11.15-150600.3.59.3</li>
<li>python311-base-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-debugsource-3.11.15-150600.3.59.3</li>
<li>python311-tk-3.11.15-150600.3.59.3</li>
<li>python311-tools-3.11.15-150600.3.59.3</li>
<li>python311-idle-3.11.15-150600.3.59.3</li>
<li>python311-doc-3.11.15-150600.3.59.1</li>
<li>python311-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-devel-3.11.15-150600.3.59.3</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (x86_64)
<ul>
<li>python311-base-32bit-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-base-32bit-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-32bit-3.11.15-150600.3.59.3</li>
<li>python311-32bit-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-32bit-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-32bit-debuginfo-3.11.15-150600.3.59.3</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
<ul>
<li>python311-base-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-dbm-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-3.11.15-150600.3.59.3</li>
<li>python311-curses-3.11.15-150600.3.59.3</li>
<li>python311-dbm-3.11.15-150600.3.59.3</li>
<li>python311-debugsource-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-core-debugsource-3.11.15-150600.3.59.3</li>
<li>python311-tk-3.11.15-150600.3.59.3</li>
<li>python311-base-3.11.15-150600.3.59.3</li>
<li>python311-curses-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-tools-3.11.15-150600.3.59.3</li>
<li>python311-tk-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-idle-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-3.11.15-150600.3.59.3</li>
<li>python311-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-devel-3.11.15-150600.3.59.3</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>python311-base-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-debugsource-3.11.15-150600.3.59.3</li>
<li>python311-dbm-3.11.15-150600.3.59.3</li>
<li>python311-curses-3.11.15-150600.3.59.3</li>
<li>python311-dbm-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-3.11.15-150600.3.59.3</li>
<li>python311-core-debugsource-3.11.15-150600.3.59.3</li>
<li>python311-tk-3.11.15-150600.3.59.3</li>
<li>python311-base-3.11.15-150600.3.59.3</li>
<li>python311-curses-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-tk-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-tools-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-3.11.15-150600.3.59.3</li>
<li>python311-idle-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-devel-3.11.15-150600.3.59.3</li>
</ul>
</li>
<li>
Python 3 Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>python311-dbm-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-dbm-3.11.15-150600.3.59.3</li>
<li>python311-curses-3.11.15-150600.3.59.3</li>
<li>python311-3.11.15-150600.3.59.3</li>
<li>python311-debugsource-3.11.15-150600.3.59.3</li>
<li>python311-core-debugsource-3.11.15-150600.3.59.3</li>
<li>python311-tk-3.11.15-150600.3.59.3</li>
<li>python311-curses-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-tk-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-tools-3.11.15-150600.3.59.3</li>
<li>python311-idle-3.11.15-150600.3.59.3</li>
<li>python311-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-devel-3.11.15-150600.3.59.3</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>python311-base-debuginfo-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-debuginfo-3.11.15-150600.3.59.3</li>
<li>python311-core-debugsource-3.11.15-150600.3.59.3</li>
<li>python311-base-3.11.15-150600.3.59.3</li>
<li>libpython3_11-1_0-3.11.15-150600.3.59.3</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-1502.html">https://www.suse.com/security/cve/CVE-2026-1502.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-4786.html">https://www.suse.com/security/cve/CVE-2026-4786.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-6019.html">https://www.suse.com/security/cve/CVE-2026-6019.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-6100.html">https://www.suse.com/security/cve/CVE-2026-6100.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1261969">https://bugzilla.suse.com/show_bug.cgi?id=1261969</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262098">https://bugzilla.suse.com/show_bug.cgi?id=1262098</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262319">https://bugzilla.suse.com/show_bug.cgi?id=1262319</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262654">https://bugzilla.suse.com/show_bug.cgi?id=1262654</a>
</li>
</ul>
</div>