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libexpat project libexpat: libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_Pars

libexpat project libexpat · CVE-2026-50219
0 news outlets0 CERTs and agencies0 researchers

What is it?

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,

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
4.9
EPSS
0.2%
First seen
7 d ago
Status
corroborated

All libexpat project vulnerabilities