Bug 2448181 (CVE-2026-4224) - CVE-2026-4224 cpython: Stack overflow parsing XML with deeply nested DTD content models
Summary: CVE-2026-4224 cpython: Stack overflow parsing XML with deeply nested DTD cont...
Keywords:
Status: NEW
Alias: CVE-2026-4224
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On: 2448203 2448209 2448210 2448201 2448202 2448204 2448205 2448206 2448207 2448208
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-16 19:02 UTC by OSIDB Bzimport
Modified: 2026-04-27 14:54 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
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Last Closed:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:10950 0 None None None 2026-04-27 14:54:33 UTC

Description OSIDB Bzimport 2026-03-16 19:02:18 UTC 
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.
Comment 5 errata-xmlrpc 2026-04-27 14:54:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:10950 https://access.redhat.com/errata/RHSA-2026:10950
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