CVE-2026-50219

Description

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,

PUBLISHED Reserved 2026-06-04 | Published 2026-06-04 | Updated 2026-06-04 | Assigner mitre

Problem types

CWE-416 Use After Free

Product status

References

github.com/libexpat/libexpat/pull/1246

cve.org (CVE-2026-50219)

nvd.nist.gov (CVE-2026-50219)

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