<div class="container">
<h1>Security update for amazon-ssm-agent</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:4286-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-09-22T16:08:49Z</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=1276981">bsc#1276981</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1276994">bsc#1276994</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1278681">bsc#1278681</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-2026-56854.html">CVE-2026-56854</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-56855.html">CVE-2026-56855</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-71556.html">CVE-2026-71556</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-71557.html">CVE-2026-71557</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-78662.html">CVE-2026-78662</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-2026-56854</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.6</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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-2026-56854</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-56854</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:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-56855</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-2026-56855</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-2026-56855</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-2026-71556</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-71556</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-71557</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-71557</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-78662</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-2026-78662</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:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-78662</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:H/I:N/A:N</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 five vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for amazon-ssm-agent fixes the following issues:</p>
<ul>
<li>CVE-2026-56854: golang.org/x/crypto/ssh: source-address restriction bypassed in 5 callback families (bsc#1278681)</li>
<li>CVE-2026-56855: golang.org/x/crypto/ssh: prevent DoS on deadlocked established channel (bsc#1278681)</li>
<li>CVE-2026-78662: golang.org/x/crypto/ssh: prevent DoS on deadlocked undecided channel (bsc#1278681).</li>
<li>CVE-2026-71556: github.com/go-git/go-git/v5: Arbitrary file read/write via symbolic link resolution (bsc#1276981).</li>
<li>CVE-2026-71557: github.com/go-git/go-git/v5: Malicious reference names may modify files outside the reference storage
(bsc#1276994).</li>
</ul>
<p>Changes for amazon-ssm-agent:</p>
<ul>
<li>Update to version 3.3.5390.0</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-12-2026-4286</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
Public Cloud Module 12 (aarch64 x86_64)
<ul>
<li>amazon-ssm-agent-3.3.5390.0-4.52.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-56854.html">https://www.suse.com/security/cve/CVE-2026-56854.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-56855.html">https://www.suse.com/security/cve/CVE-2026-56855.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-71556.html">https://www.suse.com/security/cve/CVE-2026-71556.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-71557.html">https://www.suse.com/security/cve/CVE-2026-71557.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-78662.html">https://www.suse.com/security/cve/CVE-2026-78662.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1276981">https://bugzilla.suse.com/show_bug.cgi?id=1276981</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1276994">https://bugzilla.suse.com/show_bug.cgi?id=1276994</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1278681">https://bugzilla.suse.com/show_bug.cgi?id=1278681</a>
</li>
</ul>
</div>