<div class="container">
<h1>Security update for nginx</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:3448-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-08-03T11:17:08Z</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=1267525">bsc#1267525</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1268492">bsc#1268492</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1268495">bsc#1268495</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271514">bsc#1271514</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-2026-42055.html">CVE-2026-42055</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42533.html">CVE-2026-42533</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-48142.html">CVE-2026-48142</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-2026-42055</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42055</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.2</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/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-2026-42055</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42055</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42533</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">9.2</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42533</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42533</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.2</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/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-2026-42533</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-48142</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:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-48142</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:L/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-2026-48142</span>
<span class="cvss-source">
(
NVD
):
</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:N/A:L</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">openSUSE Leap 15.4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing LTSS 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing LTSS 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP4 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP5</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves three vulnerabilities and has one security fix can now be installed.</p>
<h2>Description:</h2>
<p>This update for nginx fixes the following issues:</p>
<ul>
<li>CVE-2026-42055: heap buffer overflow in the <code>ngx_http_proxy_v2_module</code> and <code>ngx_http_grpc_module</code> modules
(bsc#1268492).</li>
<li>CVE-2026-42533: heap buffer overflow in the <code>map</code> directive and regex matching (bsc#1271514).</li>
<li>CVE-2026-48142: heap buffer overread in the <code>ngx_http_charset_module</code> module (bsc#1268495).</li>
<li>Remote denial of service via the HTTP/2 bomb exploit (bsc#1267525).</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 15 SP5 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-3448=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-3448=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-3448=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-3448=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP4 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-3448=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-3448=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-3448=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-3448=1</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.4
<br/>
<code>zypper in -t patch SUSE-2026-3448=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP4 LTSS (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.4 (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
<ul>
<li>nginx-debuginfo-1.21.5-150400.3.25.1</li>
<li>nginx-1.21.5-150400.3.25.1</li>
<li>nginx-debugsource-1.21.5-150400.3.25.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
<ul>
<li>nginx-source-1.21.5-150400.3.25.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42055.html">https://www.suse.com/security/cve/CVE-2026-42055.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42533.html">https://www.suse.com/security/cve/CVE-2026-42533.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-48142.html">https://www.suse.com/security/cve/CVE-2026-48142.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1267525">https://bugzilla.suse.com/show_bug.cgi?id=1267525</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1268492">https://bugzilla.suse.com/show_bug.cgi?id=1268492</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1268495">https://bugzilla.suse.com/show_bug.cgi?id=1268495</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271514">https://bugzilla.suse.com/show_bug.cgi?id=1271514</a>
</li>
</ul>
</div>