High [CVE-2026-5674] Sandbox escape and arbitrary code execution via malicious library loading
This high-severity Red Hat Linux advisory covers CVE-2026-5674 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support.
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Summary
A flaw was found in PipeWire, a multimedia server. This vulnerability allows an attacker to escape sandboxed applications, such as Flatpak, by exploiting PipeWire's PulseAudio compatibility layer.
An attacker with minimal permissions within a sandboxed environment can load a malicious library, leading to arbitrary code execution outside the sandbox and potential compromise of the user's system.
Important: This flaw in PipeWire allows for a sandbox escape, enabling arbitrary code execution outside of sandboxed environments, such as Flatpak applications, when minimal permissions are granted.
Red Hat products utilizing PipeWire's PulseAudio compatibility layer are susceptible, as an attacker can load a malicious library from within a sandboxed process, bypassing isolation mechanisms. Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
Weakness: CWE-427. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
Affected products named by the advisory: Red Hat package: pipewire.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 5 days ago·verify at source
- pipewire-0:1.4.11-1.el10_2
- pipewire-0:1.2.7-1.el10_0.1
- pipewire-0:1.4.11-1.el9_8
- pipewire-0:1.0.1-1.el9_4.1
- pipewire-0:1.0.1-1.el9_6.1
- RHSA-2026:47083
- RHSA-2026:51064
- RHSA-2026:47082
- RHSA-2026:56028
- RHSA-2026:56029
Official advisory · high-confidence parse· fetched 5 days ago·verify at source
Mitigation checklist
- To mitigate this issue, restrict containerized applications from accessing the PulseAudio socket or writing to host-visible paths. Additionally, configure PipeWire to prevent module loading by setting `pulse.allow-module-loading = false` in the PipeWire PulseAudio configuration. Alternatively, restrict the `dlopen()` paths for `module-ladspa-sink` to trusted system directories like `/usr/lib/ladspa/` and `/usr/lib64/ladspa/`. Applying these changes may require restarting the PipeWire service to take effect, which could impact audio functionality.
Official advisory · high-confidence parse· fetched 5 days ago·verify at source
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