<div class="container">
<h1>Security update for libpng16</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:4814-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-10-21T10:10:51Z</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=1283183">bsc#1283183</a>
</li>
<li style="display: inline;">
<a href="https://jira.suse.com/browse/PED-16190">jsc#PED-16190</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-2026-46675.html">CVE-2026-46675</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-2026-46675</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:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-46675</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: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">SUSE Linux Enterprise Micro 5.3</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.4</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.5</li>
<li class="list-group-item">SUSE Linux Enterprise Micro for Rancher 5.3</li>
<li class="list-group-item">SUSE Linux Enterprise Micro for Rancher 5.4</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 libpng16 fixes the following issues:</p>
<ul>
<li>CVE-2026-46675: Use-after-free of zlib input in <code>png_read_end</code> after incomplete zTXt, iTXt or iCCP decompression
(bsc#1283183).</li>
</ul>
<p>Changes for libpng16:</p>
<ul>
<li>version update to 1.6.59 (jsc#PED-16190):</li>
<li>Fixed a regression introduced in version 1.6.47 that caused libpng to reject
hIST chunks in their correct position, after PLTE.</li>
<li>Prevented a double free of <code>png_struct</code> members after an allocation failure.</li>
<li>Applied fixes and updates to the CMake build.</li>
<li>Adopted the REUSE Specification for licensing the CI files.</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 Micro for Rancher 5.3
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.3-2026-4814</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.3
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.3-2026-4814</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro for Rancher 5.4
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.4-2026-4814</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.4
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.4-2026-4814</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.5
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.5-2026-4814</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
<ul>
<li>libpng16-16-1.6.59-150000.3.28.1</li>
<li>libpng16-debugsource-1.6.59-150000.3.28.1</li>
<li>libpng16-16-debuginfo-1.6.59-150000.3.28.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
<ul>
<li>libpng16-16-1.6.59-150000.3.28.1</li>
<li>libpng16-debugsource-1.6.59-150000.3.28.1</li>
<li>libpng16-16-debuginfo-1.6.59-150000.3.28.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
<ul>
<li>libpng16-16-1.6.59-150000.3.28.1</li>
<li>libpng16-debugsource-1.6.59-150000.3.28.1</li>
<li>libpng16-16-debuginfo-1.6.59-150000.3.28.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
<ul>
<li>libpng16-16-1.6.59-150000.3.28.1</li>
<li>libpng16-debugsource-1.6.59-150000.3.28.1</li>
<li>libpng16-16-debuginfo-1.6.59-150000.3.28.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
<ul>
<li>libpng16-16-1.6.59-150000.3.28.1</li>
<li>libpng16-debugsource-1.6.59-150000.3.28.1</li>
<li>libpng16-16-debuginfo-1.6.59-150000.3.28.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-46675.html">https://www.suse.com/security/cve/CVE-2026-46675.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1283183">https://bugzilla.suse.com/show_bug.cgi?id=1283183</a>
</li>
<li>
<a href="https://jira.suse.com/browse/PED-16190">https://jira.suse.com/browse/PED-16190</a>
</li>
</ul>
</div>