<div class="container">
<h1>Security update for erlang</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:21374-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-04-22T10:52:20Z</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=1258663">bsc#1258663</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259681">bsc#1259681</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259682">bsc#1259682</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259687">bsc#1259687</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1261726">bsc#1261726</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1261728">bsc#1261728</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1261734">bsc#1261734</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262288">bsc#1262288</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-2026-21620.html">CVE-2026-21620</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-23941.html">CVE-2026-23941</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-23942.html">CVE-2026-23942</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-23943.html">CVE-2026-23943</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-28808.html">CVE-2026-28808</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-28810.html">CVE-2026-28810</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-32144.html">CVE-2026-32144</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-2026-21620</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.6</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-21620</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-21620</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">2.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23941</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-2026-23941</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-2026-23941</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.0</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23942</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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-2026-23942</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23942</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23943</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-2026-23943</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-2026-23943</span>
<span class="cvss-source">
(
NVD
):
</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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-28808</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">9.1</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-28808</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-28808</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-28808</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-28810</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:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-28810</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:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-28810</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.3</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-28810</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-2026-32144</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.6</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-32144</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-32144</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.6</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-32144</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Enterprise Server 16.0</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP applications 16.0</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves seven vulnerabilities and has one fix can now be installed.</p>
<h2>Description:</h2>
<p>This update for erlang fixes the following issues:</p>
<p>Security issues fixed:</p>
<ul>
<li>CVE-2026-21620: improper isolation and compartmentalization can lead to TFTP relative path traversal and remote
arbitrary reads/writes (bsc#1258663).</li>
<li>CVE-2026-23941: improper handling of duplicate Content-Length headers in Erlang OTP can lead to HTTP request
smuggling (bsc#1259687).</li>
<li>CVE-2026-23942: improper limitation of a pathname to a restricted directory in the SFTP server can lead to path
traversal (bsc#1259681).</li>
<li>CVE-2026-23943: improper handling of highly compressed data in Erlang OTP ssh can lead to denial of service
(bsc#1259682).</li>
<li>CVE-2026-28808: incorrect authorization can lead to unauthenticated access to protected CGI scripts (bsc#1261728).</li>
<li>CVE-2026-28810: predictable DNS transaction IDs can lead to DNS cache poisoning (bsc#1261726).</li>
<li>CVE-2026-32144: missing signature verification can lead to OCSP authorization bypass and information disclosure
(bsc#1261734).</li>
</ul>
<p>Other updates and bugfixes:</p>
<ul>
<li>jinterface: allow to build determenistic OtpErlang.jar (bsc#1262288).</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 for SAP applications 16.0
<br/>
<code>zypper in -t patch SUSE-SLES-16.0-619=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 16.0
<br/>
<code>zypper in -t patch SUSE-SLES-16.0-619=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
<ul>
<li>erlang-epmd-27.1.3-160000.4.1</li>
<li>erlang-debuginfo-27.1.3-160000.4.1</li>
<li>erlang-debugsource-27.1.3-160000.4.1</li>
<li>erlang-27.1.3-160000.4.1</li>
<li>erlang-epmd-debuginfo-27.1.3-160000.4.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
<ul>
<li>erlang-epmd-27.1.3-160000.4.1</li>
<li>erlang-debuginfo-27.1.3-160000.4.1</li>
<li>erlang-debugsource-27.1.3-160000.4.1</li>
<li>erlang-27.1.3-160000.4.1</li>
<li>erlang-epmd-debuginfo-27.1.3-160000.4.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-21620.html">https://www.suse.com/security/cve/CVE-2026-21620.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-23941.html">https://www.suse.com/security/cve/CVE-2026-23941.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-23942.html">https://www.suse.com/security/cve/CVE-2026-23942.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-23943.html">https://www.suse.com/security/cve/CVE-2026-23943.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-28808.html">https://www.suse.com/security/cve/CVE-2026-28808.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-28810.html">https://www.suse.com/security/cve/CVE-2026-28810.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-32144.html">https://www.suse.com/security/cve/CVE-2026-32144.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1258663">https://bugzilla.suse.com/show_bug.cgi?id=1258663</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259681">https://bugzilla.suse.com/show_bug.cgi?id=1259681</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259682">https://bugzilla.suse.com/show_bug.cgi?id=1259682</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259687">https://bugzilla.suse.com/show_bug.cgi?id=1259687</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1261726">https://bugzilla.suse.com/show_bug.cgi?id=1261726</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1261728">https://bugzilla.suse.com/show_bug.cgi?id=1261728</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1261734">https://bugzilla.suse.com/show_bug.cgi?id=1261734</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262288">https://bugzilla.suse.com/show_bug.cgi?id=1262288</a>
</li>
</ul>
</div>