<div class="container">
<h1>Security update for golang-github-prometheus-alertmanager</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2025:4481-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2025-12-18T12:19:03Z</td>
</tr>
<tr>
<th>Rating:</th>
<td>moderate</td>
</tr>
<tr>
<th>References:</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1247748">bsc#1247748</a>
</li>
<li style="display: inline;">
<a href="https://jira.suse.com/browse/MSQA-1034">jsc#MSQA-1034</a>
</li>
<li style="display: inline;">
<a href="https://jira.suse.com/browse/PED-13285">jsc#PED-13285</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-2025-47908.html">CVE-2025-47908</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-2025-47908</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.9</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-47908</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-47908</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">openSUSE Leap 15.3</li>
<li class="list-group-item">openSUSE Leap 15.4</li>
<li class="list-group-item">openSUSE Leap 15.5</li>
<li class="list-group-item">openSUSE Leap 15.6</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6</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</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP7</li>
<li class="list-group-item">SUSE Manager Client Tools for SLE 15</li>
<li class="list-group-item">SUSE Manager Proxy 4.3</li>
<li class="list-group-item">SUSE Manager Proxy 4.3 LTS</li>
<li class="list-group-item">SUSE Manager Retail Branch Server 4.3</li>
<li class="list-group-item">SUSE Package Hub 15 15-SP6</li>
<li class="list-group-item">SUSE Package Hub 15 15-SP7</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves one vulnerability and contains two features can now be installed.</p>
<h2>Description:</h2>
<p>This update for golang-github-prometheus-alertmanager fixes the following issues:</p>
<ul>
<li>Update to version 0.28.1 (jsc#PED-13285):</li>
<li>Improved performance of inhibition rules when using Equal
labels.</li>
<li>Improve the documentation on escaping in UTF-8 matchers.</li>
<li>Update alertmanager_config_hash metric help to document the
hash is not cryptographically strong.</li>
<li>Fix panic in amtool when using --verbose.</li>
<li>Fix templating of channel field for Rocket.Chat.</li>
<li>Fix rocketchat_configs written as rocket_configs in docs.</li>
<li>Fix usage for --enable-feature flag.</li>
<li>Trim whitespace from OpsGenie API Key.</li>
<li>Fix Jira project template not rendered when searching for
existing issues.</li>
<li>Fix subtle bug in JSON/YAML encoding of inhibition rules that
would cause Equal labels to be omitted.</li>
<li>Fix header for slack_configs in docs.</li>
<li>Fix weight and wrap of Microsoft Teams notifications.</li>
<li>Upgrade to version 0.28.0:</li>
<li>CVE-2025-47908: Bump github.com/rs/cors (bsc#1247748).</li>
<li>Templating errors in the SNS integration now return an error.</li>
<li>Adopt log/slog, drop go-kit/log.</li>
<li>Add a new Microsoft Teams integration based on Flows.</li>
<li>Add a new Rocket.Chat integration.</li>
<li>Add a new Jira integration.</li>
<li>Add support for GOMEMLIMIT, enable it via the feature flag
--enable-feature=auto-gomemlimit.</li>
<li>Add support for GOMAXPROCS, enable it via the feature flag
--enable-feature=auto-gomaxprocs.</li>
<li>Add support for limits of silences including the maximum number
of active and pending silences, and the maximum size per
silence (in bytes). You can use the flags
--silences.max-silences and --silences.max-silence-size-bytes
to set them accordingly.</li>
<li>Muted alerts now show whether they are suppressed or not in
both the /api/v2/alerts endpoint and the Alertmanager UI.</li>
<li>Upgrade to version 0.27.0:</li>
<li>API: Removal of all api/v1/ endpoints. These endpoints
now log and return a deprecation message and respond with a
status code of 410.</li>
<li>UTF-8 Support: Introduction of support for any UTF-8
character as part of label names and matchers.</li>
<li>Discord Integration: Enforce max length in message.</li>
<li>Metrics: Introduced the experimental feature flag
--enable-feature=receiver-name-in-metrics to include the
receiver name.</li>
<li>Metrics: Introduced a new gauge named
alertmanager_inhibition_rules that counts the number of
configured inhibition rules.</li>
<li>Metrics: Introduced a new counter named
alertmanager_alerts_supressed_total that tracks muted alerts,
it contains a reason label to indicate the source of the mute.</li>
<li>Discord Integration: Introduced support for webhook_url_file.</li>
<li>Microsoft Teams Integration: Introduced support for
webhook_url_file.</li>
<li>Microsoft Teams Integration: Add support for summary.</li>
<li>Metrics: Notification metrics now support two new values for
the label reason, contextCanceled and contextDeadlineExceeded.</li>
<li>Email Integration: Contents of auth_password_file are now
trimmed of prefixed and suffixed whitespace.</li>
<li>amtool: Fixes the error scheme required for webhook url when
using amtool with --alertmanager.url.</li>
<li>Mixin: Fix AlertmanagerFailedToSendAlerts,
AlertmanagerClusterFailedToSendAlerts, and
AlertmanagerClusterFailedToSendAlerts to make sure they ignore
the reason label.</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 Package Hub 15 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2025-4481=1</code>
</li>
<li class="list-group-item">
SUSE Manager Proxy 4.3 LTS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-LTS-2025-4481=1</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.6
<br/>
<code>zypper in -t patch openSUSE-SLE-15.6-2025-4481=1</code>
</li>
<li class="list-group-item">
SUSE Manager Client Tools for SLE 15
<br/>
<code>zypper in -t patch SUSE-SLE-Manager-Tools-15-2025-4481=1</code>
</li>
<li class="list-group-item">
SUSE Package Hub 15 15-SP6
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP6-2025-4481=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>golang-github-prometheus-alertmanager-0.28.1-150100.4.28.2</li>
<li>golang-github-prometheus-alertmanager-debuginfo-0.28.1-150100.4.28.2</li>
</ul>
</li>
<li>
SUSE Manager Proxy 4.3 LTS (x86_64)
<ul>
<li>golang-github-prometheus-alertmanager-0.28.1-150100.4.28.2</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
<ul>
<li>golang-github-prometheus-alertmanager-0.28.1-150100.4.28.2</li>
<li>golang-github-prometheus-alertmanager-debuginfo-0.28.1-150100.4.28.2</li>
</ul>
</li>
<li>
SUSE Manager Client Tools for SLE 15 (aarch64 ppc64le s390x x86_64)
<ul>
<li>golang-github-prometheus-alertmanager-0.28.1-150100.4.28.2</li>
</ul>
</li>
<li>
SUSE Package Hub 15 15-SP6 (aarch64 ppc64le s390x x86_64)
<ul>
<li>golang-github-prometheus-alertmanager-0.28.1-150100.4.28.2</li>
<li>golang-github-prometheus-alertmanager-debuginfo-0.28.1-150100.4.28.2</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-47908.html">https://www.suse.com/security/cve/CVE-2025-47908.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1247748">https://bugzilla.suse.com/show_bug.cgi?id=1247748</a>
</li>
<li>
<a href="https://jira.suse.com/browse/MSQA-1034">https://jira.suse.com/browse/MSQA-1034</a>
</li>
<li>
<a href="https://jira.suse.com/browse/PED-13285">https://jira.suse.com/browse/PED-13285</a>
</li>
</ul>
</div>