<div class="container">
<h1>Security update for bouncycastle</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:21404-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-04-24T15:26:29Z</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=1262225">bsc#1262225</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262226">bsc#1262226</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262227">bsc#1262227</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262228">bsc#1262228</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262232">bsc#1262232</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-2025-14813.html">CVE-2025-14813</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-0636.html">CVE-2026-0636</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-3505.html">CVE-2026-3505</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-5588.html">CVE-2026-5588</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-5598.html">CVE-2026-5598</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-2025-14813</span>
<span class="cvss-source">
(
SUSE
):
</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:L/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-14813</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.6</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-14813</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.3</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/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:M/U:Red</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-0636</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:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-0636</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:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-0636</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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:N/AU:Y/R:A/V:X/RE:M/U:Amber</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-3505</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/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-2026-3505</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-3505</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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-2026-5588</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:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-5588</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:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-5588</span>
<span class="cvss-source">
(
NVD
):
</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:N/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:Amber</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-5598</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.8</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-5598</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.6</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-5598</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.9</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/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:P/AU:Y/R:X/V:X/RE:X/U:Red</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 five vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for bouncycastle fixes the following issues:</p>
<ul>
<li>Update to version 1.84:</li>
<li>CVE-2025-14813: GOSTCTR implementation unable to process more than 255 blocks correctly (bsc#1262225).</li>
<li>CVE-2026-0636: LDAP Injection Vulnerability in LDAPStoreHelper.java (bsc#1262226).</li>
<li>CVE-2026-3505: Unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion (bsc#1262232).</li>
<li>CVE-2026-5588: PKIX draft CompositeVerifier accepts empty signature sequence as valid (bsc#1262228).</li>
<li>CVE-2026-5598: Non-constant time comparisons risk private key leakage in FrodoKEM (bsc#1262227).</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-16.0-643=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 16.0
<br/>
<code>zypper in -t patch SUSE-SLES-16.0-643=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
<ul>
<li>bouncycastle-util-1.84-160000.1.1</li>
<li>bouncycastle-pkix-1.84-160000.1.1</li>
<li>bouncycastle-jmail-1.84-160000.1.1</li>
<li>bouncycastle-pg-1.84-160000.1.1</li>
<li>bouncycastle-tls-1.84-160000.1.1</li>
<li>bouncycastle-mail-1.84-160000.1.1</li>
<li>bouncycastle-javadoc-1.84-160000.1.1</li>
<li>bouncycastle-1.84-160000.1.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 16.0 (noarch)
<ul>
<li>bouncycastle-util-1.84-160000.1.1</li>
<li>bouncycastle-pkix-1.84-160000.1.1</li>
<li>bouncycastle-jmail-1.84-160000.1.1</li>
<li>bouncycastle-pg-1.84-160000.1.1</li>
<li>bouncycastle-tls-1.84-160000.1.1</li>
<li>bouncycastle-mail-1.84-160000.1.1</li>
<li>bouncycastle-javadoc-1.84-160000.1.1</li>
<li>bouncycastle-1.84-160000.1.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-14813.html">https://www.suse.com/security/cve/CVE-2025-14813.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-0636.html">https://www.suse.com/security/cve/CVE-2026-0636.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-3505.html">https://www.suse.com/security/cve/CVE-2026-3505.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-5588.html">https://www.suse.com/security/cve/CVE-2026-5588.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-5598.html">https://www.suse.com/security/cve/CVE-2026-5598.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262225">https://bugzilla.suse.com/show_bug.cgi?id=1262225</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262226">https://bugzilla.suse.com/show_bug.cgi?id=1262226</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262227">https://bugzilla.suse.com/show_bug.cgi?id=1262227</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262228">https://bugzilla.suse.com/show_bug.cgi?id=1262228</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1262232">https://bugzilla.suse.com/show_bug.cgi?id=1262232</a>
</li>
</ul>
</div>