<div class="container">
<h1>Security update for google-guest-agent</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:3439-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-07-31T18:33:40Z</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=1266603">bsc#1266603</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1272118">bsc#1272118</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-2026-39821.html">CVE-2026-39821</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-2026-39821</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-2026-56852</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">Public Cloud Module 12</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 12 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 12 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 12 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 12 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 12</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 12 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 12 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 12 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 12 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 12 SP5</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves two vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for google-guest-agent fixes the following issues</p>
<ul>
<li>CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation
bypass and privilege escalation (bsc#1266603).</li>
<li>CVE-2026-56852: golang.org/x/text/unicode/norm: improper handling of input containing invalid UTF-8 bytes can lead
to infinite loop (bsc#1272118).</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">
Public Cloud Module 12
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2026-3439=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
Public Cloud Module 12 (aarch64 ppc64le s390x x86_64)
<ul>
<li>google-guest-agent-20260529.00-1.66.2</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<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-2026-56852.html">https://www.suse.com/security/cve/CVE-2026-56852.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1266603">https://bugzilla.suse.com/show_bug.cgi?id=1266603</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1272118">https://bugzilla.suse.com/show_bug.cgi?id=1272118</a>
</li>
</ul>
</div>