VULNERABILITY INTELLIGENCE

CVE-2026-4224

CVSS score7.5 HIGH
EPSS probability0.70%
CISA KEVNot currently listed
Published2026-03-16
Last modified2026-08-13
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-674

Primary references