<div class="container">
<h1>Security update for MozillaThunderbird</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:0388-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-02-05T11:14:26Z</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=1257397">bsc#1257397</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-2026-0818.html">CVE-2026-0818</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-2026-0818</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">2.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-0818</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">3.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-0818</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">openSUSE Leap 15.6</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 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>
<li class="list-group-item">SUSE Linux Enterprise Workstation Extension 15 SP7</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 can now be installed.</p>
<h2>Description:</h2>
<p>This update for MozillaThunderbird fixes the following issues:</p>
<p>Update to Mozilla Thunderbird 140.7.1 MFSA 2026-08 (bsc#1257397):</p>
<ul>
<li>CVE-2026-0818: CSS-based exfiltration of the content from partially encrypted emails when allowing remote content</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">
openSUSE Leap 15.6
<br/>
<code>zypper in -t patch openSUSE-SLE-15.6-2026-388=1</code>
</li>
<li class="list-group-item">
SUSE Package Hub 15 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-388=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Workstation Extension 15 SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-388=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
<ul>
<li>MozillaThunderbird-debugsource-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-debuginfo-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-translations-other-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-translations-common-140.7.1-150200.8.254.1</li>
</ul>
</li>
<li>
SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x)
<ul>
<li>MozillaThunderbird-debugsource-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-debuginfo-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-translations-other-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-translations-common-140.7.1-150200.8.254.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Workstation Extension 15 SP7 (x86_64)
<ul>
<li>MozillaThunderbird-debugsource-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-debuginfo-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-translations-other-140.7.1-150200.8.254.1</li>
<li>MozillaThunderbird-translations-common-140.7.1-150200.8.254.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-0818.html">https://www.suse.com/security/cve/CVE-2026-0818.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1257397">https://bugzilla.suse.com/show_bug.cgi?id=1257397</a>
</li>
</ul>
</div>