<div class="container">
<h1>Security update for prometheus-ha_cluster_exporter</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:3421-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-07-30T07:37:12Z</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=1266552">bsc#1266552</a>
</li>
<li style="display: inline;">
<a href="https://jira.suse.com/browse/PED-2560">jsc#PED-2560</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>
</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">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-2026-39821</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>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<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 one vulnerability and contains one feature can now be installed.</p>
<h2>Description:</h2>
<p>This update for prometheus-ha_cluster_exporter fixes the following issue:</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#1266552).</li>
</ul>
<p>Other updates and bugfixes:</p>
<ul>
<li>Release 1.4.2</li>
<li>Use proper obs time format on changes generation.</li>
<li>Upgrade x/net to 0.57.</li>
<li>Full changelog *: https://github.com/ClusterLabs/ha_cluster_exporter/compare/1.4.1...1.4.2</li>
<li>Release 1.4.1</li>
<li>Upgrade to use go 1.25.</li>
<li>Bump github.com/prometheus/common from 0.59.1 to 0.61.0.</li>
<li>Bump golang.org/x/net from 0.33.0 to 0.55.0.</li>
<li>Full changelog: https://github.com/ClusterLabs/ha_cluster_exporter/compare/1.4.0...1.4.1</li>
<li>Release 1.4.0</li>
<li>add support to show overall cluster maintenance mode.</li>
<li>add supportconfig plugin (jsc#PED-2560).</li>
<li>update the CI workflow.</li>
<li>change default OBS development project.</li>
<li>bump required Go version to 1.23.</li>
<li>fix corosync collector parser when using IPv6 hostnames (#245).</li>
<li>Bump github.com/prometheus/client_model from 0.3.0 to 0.4.0 .</li>
<li>Bump github.com/prometheus/client_golang from 1.15.0 to 1.15.1 .</li>
<li>Bump github.com/prometheus/common from 0.42.0 to 0.44.0.</li>
<li>Bump github.com/spf13/viper from 1.15.0 to 1.16.0.</li>
<li>Bump github.com/stretchr/testify from 1.8.2 to 1.8.4.</li>
<li>Bump github.com/prometheus/client_golang from 1.15.1 to 1.16.0.</li>
<li>Bump github.com/prometheus/client_golang from 1.16.0 to 1.17.0.</li>
<li>Bump golang.org/x/net from 0.10.0 to 0.17.0.</li>
<li>Bump github.com/prometheus/common from 0.44.0 to 0.55.0.</li>
<li>Bump github.com/spf13/viper from 1.16.0 to 1.19.0.</li>
<li>Bump actions/download-artifact from 3 to 4.1.7.</li>
<li>Bump github.com/prometheus/client_golang from 1.19.1 to 1.20.2.</li>
<li>Bump github.com/prometheus/common from 0.55.0 to 0.59.1.</li>
<li>Bump github.com/prometheus/client_golang from 1.20.2 to 1.20.4.</li>
<li>Bump github.com/prometheus/client_golang from 1.20.4 to 1.20.5.</li>
<li>Bump github.com/stretchr/testify from 1.9.0 to 1.10.0.</li>
<li>Bump golang.org/x/crypto from 0.26.0 to 0.31.0.</li>
<li>Full changelog: https://github.com/ClusterLabs/ha_cluster_exporter/compare/1.3.3...1.4.0</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">
SUSE Linux Enterprise Server for SAP Applications 12 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-SAP-12-SP5-2026-3421=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server for SAP Applications 12 SP5 (ppc64le x86_64)
<ul>
<li>prometheus-ha_cluster_exporter-1.4.2-4.34.1</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://bugzilla.suse.com/show_bug.cgi?id=1266552">https://bugzilla.suse.com/show_bug.cgi?id=1266552</a>
</li>
<li>
<a href="https://jira.suse.com/browse/PED-2560">https://jira.suse.com/browse/PED-2560</a>
</li>
</ul>
</div>