<div class="container">
<h1>Security update for libsoup</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:4558-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-10-07T08:51:34Z</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=1271401">bsc#1271401</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271446">bsc#1271446</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271447">bsc#1271447</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271449">bsc#1271449</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1272195">bsc#1272195</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273156">bsc#1273156</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-2026-12478.html">CVE-2026-12478</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-12547.html">CVE-2026-12547</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-15711.html">CVE-2026-15711</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-15712.html">CVE-2026-15712</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-15714.html">CVE-2026-15714</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-66339.html">CVE-2026-66339</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-2026-12478</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:L/VI:N/VA:L/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-12478</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-2026-12478</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-12547</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:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-12547</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-12547</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">3.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15711</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-2026-15711</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-2026-15712</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15712</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-2026-15714</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15714</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-66339</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.1</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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-2026-66339</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-66339</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Basesystem Module 15-SP7</li>
<li class="list-group-item">openSUSE Leap 15.6</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP7</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves six vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for libsoup fixes the following issues:</p>
<ul>
<li>CVE-2026-12478: websocket: Fix out-of-bounds read when reading unmasked frame (bsc#1271401).</li>
<li>CVE-2026-12547: Header "Proxy-Authorization" leads to credentials being send to different proxy after proxy switch
(bsc#1272195).</li>
<li>CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol
violation (bsc#1271446).</li>
<li>CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-
termination assumption (bsc#1271447).</li>
<li>CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via
an oversized multipart boundary string (bsc#1271449).</li>
<li>CVE-2026-66339: proxy credentials leak to destination server via <code>Proxy-Authorization</code> header in CONNECT tunnels
(bsc#1273156).</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 15 SP6
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-4558</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.6
<br/>
<code>zypper in -t patch SUSE-2026-4558</code>
</li>
<li class="list-group-item">
Basesystem Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-4558</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP6 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-4558</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
<ul>
<li>libsoup-3_0-0-3.4.4-150600.3.56.1</li>
<li>libsoup-3_0-0-debuginfo-3.4.4-150600.3.56.1</li>
<li>libsoup-devel-3.4.4-150600.3.56.1</li>
<li>libsoup-debugsource-3.4.4-150600.3.56.1</li>
<li>typelib-1_0-Soup-3_0-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
<ul>
<li>libsoup-lang-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
<ul>
<li>libsoup-3_0-0-3.4.4-150600.3.56.1</li>
<li>libsoup-3_0-0-debuginfo-3.4.4-150600.3.56.1</li>
<li>libsoup-devel-3.4.4-150600.3.56.1</li>
<li>libsoup-debugsource-3.4.4-150600.3.56.1</li>
<li>typelib-1_0-Soup-3_0-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (x86_64)
<ul>
<li>libsoup-3_0-0-32bit-debuginfo-3.4.4-150600.3.56.1</li>
<li>libsoup-devel-32bit-3.4.4-150600.3.56.1</li>
<li>libsoup-3_0-0-32bit-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64_ilp32)
<ul>
<li>libsoup-3_0-0-64bit-debuginfo-3.4.4-150600.3.56.1</li>
<li>libsoup-devel-64bit-3.4.4-150600.3.56.1</li>
<li>libsoup-3_0-0-64bit-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (noarch)
<ul>
<li>libsoup-lang-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>libsoup-3_0-0-3.4.4-150600.3.56.1</li>
<li>libsoup-3_0-0-debuginfo-3.4.4-150600.3.56.1</li>
<li>libsoup-devel-3.4.4-150600.3.56.1</li>
<li>libsoup-debugsource-3.4.4-150600.3.56.1</li>
<li>typelib-1_0-Soup-3_0-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (noarch)
<ul>
<li>libsoup-lang-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>libsoup-3_0-0-3.4.4-150600.3.56.1</li>
<li>libsoup-3_0-0-debuginfo-3.4.4-150600.3.56.1</li>
<li>libsoup-devel-3.4.4-150600.3.56.1</li>
<li>libsoup-debugsource-3.4.4-150600.3.56.1</li>
<li>typelib-1_0-Soup-3_0-3.4.4-150600.3.56.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
<ul>
<li>libsoup-lang-3.4.4-150600.3.56.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-12478.html">https://www.suse.com/security/cve/CVE-2026-12478.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-12547.html">https://www.suse.com/security/cve/CVE-2026-12547.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-15711.html">https://www.suse.com/security/cve/CVE-2026-15711.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-15712.html">https://www.suse.com/security/cve/CVE-2026-15712.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-15714.html">https://www.suse.com/security/cve/CVE-2026-15714.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-66339.html">https://www.suse.com/security/cve/CVE-2026-66339.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271401">https://bugzilla.suse.com/show_bug.cgi?id=1271401</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271446">https://bugzilla.suse.com/show_bug.cgi?id=1271446</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271447">https://bugzilla.suse.com/show_bug.cgi?id=1271447</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271449">https://bugzilla.suse.com/show_bug.cgi?id=1271449</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1272195">https://bugzilla.suse.com/show_bug.cgi?id=1272195</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273156">https://bugzilla.suse.com/show_bug.cgi?id=1273156</a>
</li>
</ul>
</div>