<div class="container">
<h1>Security update for kubevirt</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:3480-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-08-04T11:42:33Z</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=1266575">bsc#1266575</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1269093">bsc#1269093</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271661">bsc#1271661</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1272415">bsc#1272415</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-2026-13201.html">CVE-2026-13201</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-39821.html">CVE-2026-39821</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-46600.html">CVE-2026-46600</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-56852.html">CVE-2026-56852</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-2026-13201</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.2</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-13201</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-39821</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">9.1</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/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-2026-39821</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-39821</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.2</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-39821</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.6</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-46600</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-46600</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-56852</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.0</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:L/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-2026-56852</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.9</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-56852</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">Containers Module 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 SP7</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 kubevirt fixes the following issues:</p>
<ul>
<li>
<p>Security update correcting a CVE over-claim from the previous
update, verified by auditing the fix code actually present in the
vendored tree:</p>
</li>
<li>
<p>CVE-2026-39821 (bsc#1266575): the previous entry claimed this
fixed by the golang.org/x/net v0.55.0 re-vendor, but 0.55.0's
idna fix is compile-time gated on Unicode 16 tables, which only
exist for go1.27+ - it is inert in our go1.25 builds, so the
claim was incorrect. Re-vendor golang.org/x/net v0.55.0 ->
v0.57.0, whose idna package rejects all-ASCII Punycode labels
unconditionally; the CVE is now actually fixed.</p>
</li>
<li>
<p>Re-vendor golang.org/x/text v0.37.0 -> v0.40.0: CVE-2026-56852
(bsc#1271661), infinite loop on invalid input in unicode/norm.</p>
</li>
<li>
<p>golang.org/x/crypto v0.52.0 -> v0.54.0 (pulled in by x/net 0.57.0;
no additional CVE claims, all previously listed x/crypto fixes
remain included).</p>
</li>
<li>
<p>CVE-2026-13201 (bsc#1269093), safepath resolves a path whose last
component is a symlink without detecting it, allowing metadata
operations via /proc/self/fd to act on the symlink target.
Backports of upstream release-1.7 commits 9ecda4ad5e and
1494cee849.</p>
</li>
<li>x/net 0.57.0 also contains the fix for CVE-2026-46600
(bsc#1272415) in dns/dnsmessage; kubevirt does not vendor that
package (not affected), the bump merely rides past it.</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">
Containers Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Containers-15-SP7-2026-3480=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
Containers Module 15-SP7 (aarch64 x86_64)
<ul>
<li>kubevirt-virtctl-1.7.4-150700.3.33.1</li>
<li>kubevirt-virtctl-debuginfo-1.7.4-150700.3.33.1</li>
<li>kubevirt-manifests-1.7.4-150700.3.33.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-13201.html">https://www.suse.com/security/cve/CVE-2026-13201.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-39821.html">https://www.suse.com/security/cve/CVE-2026-39821.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-46600.html">https://www.suse.com/security/cve/CVE-2026-46600.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-56852.html">https://www.suse.com/security/cve/CVE-2026-56852.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1266575">https://bugzilla.suse.com/show_bug.cgi?id=1266575</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1269093">https://bugzilla.suse.com/show_bug.cgi?id=1269093</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271661">https://bugzilla.suse.com/show_bug.cgi?id=1271661</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1272415">https://bugzilla.suse.com/show_bug.cgi?id=1272415</a>
</li>
</ul>
</div>