<div class="container">
<h1>Security update for cosign</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:20904-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-03-18T11:29:30Z</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=1250620">bsc#1250620</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1253913">bsc#1253913</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1256496">bsc#1256496</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1256562">bsc#1256562</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1257080">bsc#1257080</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1257085">bsc#1257085</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1257139">bsc#1257139</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1258542">bsc#1258542</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1258612">bsc#1258612</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-2025-11065.html">CVE-2025-11065</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2025-58181.html">CVE-2025-58181</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-22703.html">CVE-2026-22703</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-22772.html">CVE-2026-22772</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-23991.html">CVE-2026-23991</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-23992.html">CVE-2026-23992</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-24122.html">CVE-2026-24122</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-24137.html">CVE-2026-24137</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-26958.html">CVE-2026-26958</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-2025-11065</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-11065</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-11065</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-58181</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-2025-58181</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-2025-58181</span>
<span class="cvss-source">
(
NVD
):
</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-2026-22703</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/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-2026-22703</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/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-2026-22703</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/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-2026-22772</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:L/VI:N/VA:N/SC:L/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-22772</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-22772</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-22772</span>
<span class="cvss-source">
(
NVD
):
</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-2026-23991</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.0</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23991</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23991</span>
<span class="cvss-source">
(
NVD
):
</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23991</span>
<span class="cvss-source">
(
NVD
):
</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-2026-23992</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.0</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23992</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-23992</span>
<span class="cvss-source">
(
NVD
):
</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-2026-23992</span>
<span class="cvss-source">
(
NVD
):
</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:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-24122</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: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-2026-24122</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:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-24122</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-2026-24137</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.0</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-24137</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-24137</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-26958</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:N/VI:H/VA:L/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-26958</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:N/I:H/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-26958</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">1.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/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:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Enterprise Server - BCI 16.0</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves nine vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for cosign fixes the following issues:</p>
<p>Update to version 3.0.5:</p>
<ul>
<li>CVE-2026-24122: Fixed improper validation of certificates that outlive
expired CA certificates (bsc#1258542)</li>
<li>CVE-2026-26958: Fixed filippo.io/edwards25519: failure to initialize receiver
in MultiScalarMult can produce invalid results and lead to undefined behavior
(bsc#1258612)</li>
<li>CVE-2026-24137: Fixed github.com/sigstore/sigstore/pkg/tuf: legacy TUF client
allows for arbitrary file writes with target cache path traversal
(bsc#1257139)</li>
<li>CVE-2026-22772: Fixed github.com/sigstore/fulcio: bypass MetaIssuer URL
validation bypass can trigger SSRF to arbitrary internal services
(bsc#1256562)</li>
<li>CVE-2026-23991: Fixed github.com/theupdateframework/go-tuf/v2: denial of
service due to invalid TUF metadata JSON returned by TUF repository
(bsc#1257080)</li>
<li>CVE-2026-23992: Fixed github.com/theupdateframework/go-tuf/v2: unauthorized
modification to TUF metadata files due to a compromised or misconfigured TUF
repository (bsc#1257085)</li>
<li>CVE-2025-11065: Fixed github.com/go-viper/mapstructure/v2: sensitive
Information leak in logs (bsc#1250620)</li>
<li>CVE-2026-22703: Fixed that cosign verification accepts any valid Rekor entry
under certain conditions (bsc#1256496)</li>
<li>CVE-2025-58181: Fixed golang.org/x/crypto/ssh: invalidated number of
mechanisms can cause unbounded memory consumption (bsc#1253913)</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 - BCI 16.0
<br/>
<code>zypper in -t patch SUSE-SLES-16.0-404=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server - BCI 16.0 (aarch64 ppc64le s390x x86_64)
<ul>
<li>cosign-debuginfo-3.0.5-160000.1.1</li>
<li>cosign-3.0.5-160000.1.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-11065.html">https://www.suse.com/security/cve/CVE-2025-11065.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-58181.html">https://www.suse.com/security/cve/CVE-2025-58181.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-22703.html">https://www.suse.com/security/cve/CVE-2026-22703.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-22772.html">https://www.suse.com/security/cve/CVE-2026-22772.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-23991.html">https://www.suse.com/security/cve/CVE-2026-23991.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-23992.html">https://www.suse.com/security/cve/CVE-2026-23992.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-24122.html">https://www.suse.com/security/cve/CVE-2026-24122.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-24137.html">https://www.suse.com/security/cve/CVE-2026-24137.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-26958.html">https://www.suse.com/security/cve/CVE-2026-26958.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1250620">https://bugzilla.suse.com/show_bug.cgi?id=1250620</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1253913">https://bugzilla.suse.com/show_bug.cgi?id=1253913</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1256496">https://bugzilla.suse.com/show_bug.cgi?id=1256496</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1256562">https://bugzilla.suse.com/show_bug.cgi?id=1256562</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1257080">https://bugzilla.suse.com/show_bug.cgi?id=1257080</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1257085">https://bugzilla.suse.com/show_bug.cgi?id=1257085</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1257139">https://bugzilla.suse.com/show_bug.cgi?id=1257139</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1258542">https://bugzilla.suse.com/show_bug.cgi?id=1258542</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1258612">https://bugzilla.suse.com/show_bug.cgi?id=1258612</a>
</li>
</ul>
</div>