# CVE-2026-14330: Pipewire: pulse server alloca stack overflow

Status: published. Published: 2026-07-01. Updated: 2026-11-02.

Multiple unbounded alloca() calls in the PulseAudio protocol server.

## Remediation

- workaround: No practical mitigation beyond upgrading. The PulseAudio protocol
  server is a core module required for PulseAudio application
  compatibility. (source: CNA: redhat)

## Affected products and versions

- Red Hat / Red Hat Enterprise Linux 10 (pipewire): ≥ 0:1.4.11-1.el10_2.2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (pipewire): ≥ 0:1.4.11-1.el9_8.2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (libkrun): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (pipewire): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (pipewire0.2): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 5.5 (medium); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.16% as of 2026-11-01; percentile 5.17%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-770

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2026:61240 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:93442 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-14330 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2495907 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-14330; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-14330; retrieved 2026-11-02; source updated Not reported

Revision: 5a7c2e28c56808fae34b2adcc240617db8d22b27451d2c5d14fe96aca7dc556f

Canonical: https://y2.dev/cve/CVE-2026-14330