CVE-2026-41305: PostCSS has XSS via Unescaped </style> in its CSS Stringify Output

Overview

Severity
Medium (CVSS 6.1)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Exploit Status
Not Exploited
Patch Tuesday
2026-Apr
Released
2026-04-27
Last Updated
2026-04-27
EPSS Score
0.03% (percentile: 8.2%)

Affected Products (1)

Open Source Software

  • azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0

Revision History

  • 2026-04-27: Information published.
  • 2026-04-27: Information published.