<div class="container">
<h1>Security update for mutt</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:2300-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-06-08T13:54:59Z</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=1263892">bsc#1263892</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263893">bsc#1263893</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263894">bsc#1263894</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263895">bsc#1263895</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263896">bsc#1263896</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263897">bsc#1263897</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264047">bsc#1264047</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-2026-43859.html">CVE-2026-43859</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-43860.html">CVE-2026-43860</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-43861.html">CVE-2026-43861</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-43862.html">CVE-2026-43862</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-43863.html">CVE-2026-43863</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-43864.html">CVE-2026-43864</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-2026-43859</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43859</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43859</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">3.7</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43860</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43860</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43860</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">3.7</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43861</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:L/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43861</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:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43861</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">3.7</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43862</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43862</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43862</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">3.7</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43863</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.8</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43863</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">3.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43863</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">3.7</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43864</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">2.0</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43864</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">2.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43864</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">2.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security</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 six vulnerabilities and has one security fix can now be installed.</p>
<h2>Description:</h2>
<p>This update for mutt fixes the following issues</p>
<ul>
<li>CVE-2026-43859: <code>strfcpy</code> used instead of <code>memcpy</code> for the IMAP <code>auth_cram</code> MD5 digest (bsc#1263897).</li>
<li>CVE-2026-43860: truncation of <code>hash_passwd</code> by one byte for IMAP <code>auth_cram</code> MD5 digest (bsc#1263896).</li>
<li>CVE-2026-43861: missing check for <code>\0</code> in <code>url_pct_decode</code> (bsc#1263895).</li>
<li>CVE-2026-43862: mishandling of the <code>imap_auth_gss</code> security level (bsc#1263894).</li>
<li>CVE-2026-43863: infinite loop in <code>data_object_to_stream</code> in <code>crypt-gpgme.c</code> (bsc#1263893).</li>
<li>CVE-2026-43864: NULL pointer dereference in function <code>show_sig_summary</code> (bsc#1263892).</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 12 SP5 LTSS Extended Security
<br/>
<code>zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2300=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
<ul>
<li>mutt-1.10.1-55.33.1</li>
<li>mutt-debuginfo-1.10.1-55.33.1</li>
<li>mutt-debugsource-1.10.1-55.33.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-43859.html">https://www.suse.com/security/cve/CVE-2026-43859.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-43860.html">https://www.suse.com/security/cve/CVE-2026-43860.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-43861.html">https://www.suse.com/security/cve/CVE-2026-43861.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-43862.html">https://www.suse.com/security/cve/CVE-2026-43862.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-43863.html">https://www.suse.com/security/cve/CVE-2026-43863.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-43864.html">https://www.suse.com/security/cve/CVE-2026-43864.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263892">https://bugzilla.suse.com/show_bug.cgi?id=1263892</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263893">https://bugzilla.suse.com/show_bug.cgi?id=1263893</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263894">https://bugzilla.suse.com/show_bug.cgi?id=1263894</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263895">https://bugzilla.suse.com/show_bug.cgi?id=1263895</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263896">https://bugzilla.suse.com/show_bug.cgi?id=1263896</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1263897">https://bugzilla.suse.com/show_bug.cgi?id=1263897</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264047">https://bugzilla.suse.com/show_bug.cgi?id=1264047</a>
</li>
</ul>
</div>