<div class="container">
<h1>Security update for sccache</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:3674-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-08-21T09:04:43Z</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=1273881">bsc#1273881</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273884">bsc#1273884</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273886">bsc#1273886</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273888">bsc#1273888</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1274146">bsc#1274146</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-2026-25541.html">CVE-2026-25541</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-66746.html">CVE-2026-66746</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-66754.html">CVE-2026-66754</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-67181.html">CVE-2026-67181</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-67182.html">CVE-2026-67182</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-2026-25541</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-2026-25541</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-2026-25541</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-25541</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-2026-66746</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:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-66746</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:N/UI:R/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-66746</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:N/UI:P/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-2026-66746</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-66754</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.2</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/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-2026-66754</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-2026-66754</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.2</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:P/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-2026-66754</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-2026-67181</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:N/VI:L/VA:N/SC:L/SI:L/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-67181</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-67181</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:N/VI:L/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-2026-67181</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-67182</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-2026-67182</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-2026-67182</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:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/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-2026-67182</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Development Tools 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 five vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for sccache fixes the following issues:</p>
<ul>
<li>CVE-2026-25541: bytes: integer overflow in 'BytesMut:reserve' can lead to undefined
behavior and crashes (bsc#1274146).</li>
<li>CVE-2026-66746: rouille: HTTP Response Splitting via Unvalidated Response
Header Values (bsc#1273881).</li>
<li>CVE-2026-66754: rouille: remove_prefix function that allows remote unauthenticated
attackers to crash the server by sending a crafted percent-encoded URL (bsc#1273884).</li>
<li>CVE-2026-67181: rouille: HTTP Request Smuggling via Transfer-Encoding
Desynchronization (bsc#1273886).</li>
<li>CVE-2026-67182: rouille: HTTP Request Smuggling Enables Front-End Access Control
Bypass (bsc#1273888).</li>
</ul>
<p>Changes for sccache:</p>
<ul>
<li>
<p>Update to version 0.17.0~1:</p>
</li>
<li>
<p>Add experimental concurrent cache support</p>
</li>
<li>Release 0.17.0</li>
<li>tests: pin libc in the dist test crate</li>
<li>doc: clarify server-side outputs and drop 'recommended mode' claim</li>
<li>doc: document SCCACHE_CLIENT_SIDE env var</li>
<li>doc: document client-side and direct modes in Architecture.md</li>
<li>Fix description of Unix socket-based Redis connection</li>
<li>server: remove redundant async block in start_compile_task</li>
<li>server: simplify bind() request loops with ? instead of manual match arms</li>
<li>Add support for arg files in Rust (#2782)</li>
<li>feat: support S3 SSE-KMS with AWS-managed and customer-managed keys (#2770)</li>
<li>abort compile tasks and associated subprocesses when a client disconnects</li>
<li>treat -ivfsoverlay as a preprocessor-only argument</li>
<li>gcc: refine response-file tokenizer visibility and whitespace handling</li>
<li>integration: convert cmake 4.x modules XFAIL test to a passing test</li>
<li>gcc/clang: cache and distribute builds using quoted @response files</li>
<li>fix: Fix ToolchainPackager cfg gate to build on ppc64le/s390x</li>
<li>fix: make gcc diagnostics color output work the same as for rustc</li>
<li>implement client-side mode</li>
<li>split handle_compile_response so that the compilation result can be handled
separately</li>
<li>implement IpcStorage -- Storage backend over IPC</li>
<li>extend wire protocol with storage RPCs</li>
<li>implement AddAssign for ServerStats and related types</li>
<li>add Storage::get_path for direct file access</li>
<li>implement get_raw/put_raw on MultiLevelStorage</li>
<li>add client_side_mode config flag (SCCACHE_CLIENT_SIDE)</li>
<li>Extract new_client_runtime() helper to DRY up client runtime creation</li>
<li>Clarify single-threaded runtime rationale comment (grammar)</li>
<li>fix: use single-threaded tokio runtime in sccache dist-client</li>
<li>fix: use single-threaded tokio runtime in sccache client</li>
<li>fix: handle disabled cache backend features in multilevel chain</li>
<li>Fix ldd output parsing: remove .exists() check that failed on systems where the
symlink source path does not exist locally (e.g. aarch64)</li>
<li>Fix cfg guard for PanicToolchainPackager to also cover non-x86_64 Linux
architectures (e.g. aarch64)</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">
Development Tools Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-3674=1</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-2026-3674=1</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.6
<br/>
<code>zypper in -t patch SUSE-2026-3674=1</code>
</li>
<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-SP6-2026-3674=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
<ul>
<li>sccache-debuginfo-0.17.0~1-150600.10.14.1</li>
<li>sccache-debugsource-0.17.0~1-150600.10.14.1</li>
<li>sccache-0.17.0~1-150600.10.14.1</li>
</ul>
</li>
<li>
Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>sccache-debuginfo-0.17.0~1-150600.10.14.1</li>
<li>sccache-0.17.0~1-150600.10.14.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>sccache-debuginfo-0.17.0~1-150600.10.14.1</li>
<li>sccache-0.17.0~1-150600.10.14.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
<ul>
<li>sccache-debuginfo-0.17.0~1-150600.10.14.1</li>
<li>sccache-0.17.0~1-150600.10.14.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-25541.html">https://www.suse.com/security/cve/CVE-2026-25541.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-66746.html">https://www.suse.com/security/cve/CVE-2026-66746.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-66754.html">https://www.suse.com/security/cve/CVE-2026-66754.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-67181.html">https://www.suse.com/security/cve/CVE-2026-67181.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-67182.html">https://www.suse.com/security/cve/CVE-2026-67182.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273881">https://bugzilla.suse.com/show_bug.cgi?id=1273881</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273884">https://bugzilla.suse.com/show_bug.cgi?id=1273884</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273886">https://bugzilla.suse.com/show_bug.cgi?id=1273886</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273888">https://bugzilla.suse.com/show_bug.cgi?id=1273888</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1274146">https://bugzilla.suse.com/show_bug.cgi?id=1274146</a>
</li>
</ul>
</div>