EUVD-2026-44925Severity by source
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attacker needs a low-privilege foothold inside the sandbox (AV:L/PR:L), no user interaction, and the escape crosses the sandbox boundary (S:C), yielding full host-session C/I/A impact.
Primary rating from Vendor (redhat).
CVSS VectorVendor: redhat
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Sandbox escape in PipeWire's PulseAudio compatibility layer lets a low-privileged process inside a confined environment such as Flatpak load an attacker-controlled library and execute arbitrary code on the host user's session. The flaw (CWE-427) is present in PipeWire as shipped in Red Hat Enterprise Linux 7, 8, 9 and 10 and carries a scope-changing CVSS 3.1 score of 8.8. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already be executing code with low privileges inside a sandboxed application (e.g. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H, 8.8) fits the real risk profile: exploitation is local and needs only low privileges (a foothold inside the sandbox), requires no user interaction, and the scope change (S:C) captures the escape from the confined app into the host user session with full confidentiality, integrity and availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A user runs a malicious or compromised Flatpak application that holds ordinary audio permission. From inside its sandbox the app abuses the PulseAudio compatibility layer to make PipeWire load an attacker-supplied library, which then executes on the host outside the sandbox with the user's privileges. … |
| Remediation | No vendor-released patch version is identified in the input at time of analysis; monitor the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-5674 and Bugzilla 2455341 (https://bugzilla.redhat.com/show_bug.cgi?id=2455341) and update the pipewire and pipewire-pulseaudio packages to the fixed build for your RHEL release as soon as it is published, then restart the user session or PipeWire services so the patched code loads. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and isolate all RHEL 7-10 systems with PipeWire and Flatpak running, prioritizing those with network exposure or handling sensitive data. …
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External POC / Exploit Code
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