<div class="container">
<h1>Security update for curl</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:21452-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-04-30T14:47:08Z</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=1259362">bsc#1259362</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262631">bsc#1262631</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262632">bsc#1262632</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262635">bsc#1262635</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262636">bsc#1262636</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262638">bsc#1262638</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-2026-1965.html">CVE-2026-1965</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-4873.html">CVE-2026-4873</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-5545.html">CVE-2026-5545</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-6253.html">CVE-2026-6253</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-6276.html">CVE-2026-6276</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-6429.html">CVE-2026-6429</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-2026-1965</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.9</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-1965</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-1965</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4873</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:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4873</span>
<span class="cvss-source">
(
SUSE
):
</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:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-5545</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-5545</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6253</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.2</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6253</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.9</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6276</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:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6276</span>
<span class="cvss-source">
(
SUSE
):
</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:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6429</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.2</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-6429</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.9</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/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">SUSE Linux Micro 6.1</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves six vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for curl fixes the following issues:</p>
<p>Security issues fixed:</p>
<ul>
<li>CVE-2026-4873: connection reuse ignores TLS requirement (bsc#1262631).</li>
<li>CVE-2026-5545: wrong reuse of HTTP Negotiate connection (bsc#1262632).</li>
<li>CVE-2026-6253: proxy credentials leak over redirect-to proxy (bsc#1262635).</li>
<li>CVE-2026-6276: stale custom cookie host causes cookie leak (bsc#1262636).</li>
<li>CVE-2026-6429: netrc credential leak with reused proxy connection (bsc#1262638).</li>
</ul>
<p>Other updates and bugfixes:</p>
<ul>
<li>sws: prevent "connection monitor" to say disconnect twice (bsc#1259362).</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 Micro 6.1
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-6.1-517=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
<ul>
<li>curl-8.14.1-slfo.1.1_7.1</li>
<li>libcurl4-8.14.1-slfo.1.1_7.1</li>
<li>curl-debugsource-8.14.1-slfo.1.1_7.1</li>
<li>libcurl4-debuginfo-8.14.1-slfo.1.1_7.1</li>
<li>curl-debuginfo-8.14.1-slfo.1.1_7.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-1965.html">https://www.suse.com/security/cve/CVE-2026-1965.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-4873.html">https://www.suse.com/security/cve/CVE-2026-4873.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-5545.html">https://www.suse.com/security/cve/CVE-2026-5545.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-6253.html">https://www.suse.com/security/cve/CVE-2026-6253.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-6276.html">https://www.suse.com/security/cve/CVE-2026-6276.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-6429.html">https://www.suse.com/security/cve/CVE-2026-6429.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259362">https://bugzilla.suse.com/show_bug.cgi?id=1259362</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262631">https://bugzilla.suse.com/show_bug.cgi?id=1262631</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262632">https://bugzilla.suse.com/show_bug.cgi?id=1262632</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262635">https://bugzilla.suse.com/show_bug.cgi?id=1262635</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262636">https://bugzilla.suse.com/show_bug.cgi?id=1262636</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262638">https://bugzilla.suse.com/show_bug.cgi?id=1262638</a>
</li>
</ul>
</div>