<div class="container">
<h1>Security update for python-mistune</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:21858-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-05-28T12:08:36Z</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=1264347">bsc#1264347</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264750">bsc#1264750</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264751">bsc#1264751</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264752">bsc#1264752</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264754">bsc#1264754</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265052">bsc#1265052</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265053">bsc#1265053</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-2026-33079.html">CVE-2026-33079</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-33441.html">CVE-2026-33441</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-44708.html">CVE-2026-44708</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-44896.html">CVE-2026-44896</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-44897.html">CVE-2026-44897</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-44898.html">CVE-2026-44898</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-44899.html">CVE-2026-44899</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-2026-33079</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/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-2026-33079</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-2026-33079</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-2026-33441</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-2026-33441</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-2026-44708</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44708</span>
<span class="cvss-source">
(
SUSE
):
</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-2026-44708</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-2026-44896</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44896</span>
<span class="cvss-source">
(
SUSE
):
</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-2026-44896</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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-2026-44896</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-2026-44897</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44897</span>
<span class="cvss-source">
(
SUSE
):
</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-2026-44897</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-2026-44898</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44898</span>
<span class="cvss-source">
(
SUSE
):
</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-2026-44898</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-2026-44899</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44899</span>
<span class="cvss-source">
(
SUSE
):
</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-2026-44899</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.7</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44899</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>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Enterprise Server 16.0</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP applications 16.0</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves seven vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for python-mistune fixes the following issues</p>
<ul>
<li>CVE-2026-33079: ReDoS in <code>LINK_TITLE_RE</code> can lead to denial of service via a crafted Markdown (bsc#1264347).</li>
<li>CVE-2026-33441: processing of malformed reference links can lead to excessive resource consumption and denial of
service (bsc#1264752).</li>
<li>CVE-2026-44708: improper HTML escaping in the math plugin can lead to XSS (bsc#1264751).</li>
<li>CVE-2026-44896: improper escaping in <code>render_figure</code> can lead to attribute injection and XSS (bsc#1264754).</li>
<li>CVE-2026-44897: improper sanitization of user-controlled input in <code>HTMLRenderer.heading</code> can lead to XSS
(bsc#1264750).</li>
<li>CVE-2026-44898: improper sanitization of user-supplied HTML input in <code>render_toc_ul</code> can lead to XSS (bsc#1265052).</li>
<li>CVE-2026-44899: improper input verification in Image directive plugin and improper escaping in <code>render_block_image</code>
can lead to CSS injection (bsc#1265053).</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 Server 16.0
<br/>
<code>zypper in -t patch SUSE-SLES-16.0-816=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP applications 16.0
<br/>
<code>zypper in -t patch SUSE-SLES-16.0-816=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server 16.0 (noarch)
<ul>
<li>python313-mistune-3.1.3-160000.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
<ul>
<li>python313-mistune-3.1.3-160000.3.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-33079.html">https://www.suse.com/security/cve/CVE-2026-33079.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-33441.html">https://www.suse.com/security/cve/CVE-2026-33441.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-44708.html">https://www.suse.com/security/cve/CVE-2026-44708.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-44896.html">https://www.suse.com/security/cve/CVE-2026-44896.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-44897.html">https://www.suse.com/security/cve/CVE-2026-44897.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-44898.html">https://www.suse.com/security/cve/CVE-2026-44898.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-44899.html">https://www.suse.com/security/cve/CVE-2026-44899.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264347">https://bugzilla.suse.com/show_bug.cgi?id=1264347</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264750">https://bugzilla.suse.com/show_bug.cgi?id=1264750</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264751">https://bugzilla.suse.com/show_bug.cgi?id=1264751</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264752">https://bugzilla.suse.com/show_bug.cgi?id=1264752</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264754">https://bugzilla.suse.com/show_bug.cgi?id=1264754</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265052">https://bugzilla.suse.com/show_bug.cgi?id=1265052</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265053">https://bugzilla.suse.com/show_bug.cgi?id=1265053</a>
</li>
</ul>
</div>