CVE-2026-34601: xmldom: XML injection via unsafe CDATA serialization allows attacker-controlled markup insertion

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploit Status
Not Exploited
Patch Tuesday
2026-Apr
Released
2026-04-04
Last Updated
2026-04-15
EPSS Score
0.06% (percentile: 18.3%)

Affected Products (2)

Open Source Software

  • azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0
  • cbl2 python-tensorboard 2.11.0-3 on CBL Mariner 2.0

Revision History

  • 2026-04-04: Information published.
  • 2026-04-15: Information published.