PT-2026-25791
CVE-2026-4224
·
Published
2026-01-01
·
Updated
2026-10-20
Description by
CVSS 3.1
7.5
HighMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions
Expat (affected versions not specified)
Description
The Expat parser, when used with a registered ElementDeclHandler, is susceptible to a C stack overflow when processing an inline document type definition with a deeply nested content model. This occurs during the parsing of XML documents containing complex and deeply nested DTD content models.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploitability
Exploit
Impacts
Researchers
Vendors
Affected products
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