CVE-2026-9675: undici WebSocket client vulnerable to denial of service via cumulative fragment bypass

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Jun
Released
2026-06-27
Last Updated
2026-06-28
EPSS Score
0.43% (percentile: 34.2%)

Affected Products (1)

Open Source Software

  • azl3 nodejs 24.14.1-3 on Azure Linux 3.0

Revision History

  • 2026-06-27: Information published.
  • 2026-06-28: Information published.