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4.9 Medium

CVE-2026-50219 libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer,…

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,

Affected products and versions

Product Affected versions Fixed in
libexpat 2.8 earliest → < 2.8.2 2.8.2

References

Timeline

  1. Published
  2. Last modified

Other CVEs of libexpat

The 26 CVEs of libexpat →
CVE-2026-76957 libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks 4.9 Medium CVE-2026-76956 In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy,… 5.9 Medium CVE-2026-66046 Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the… 8.7 High CVE-2026-72522 libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the… 6.2 Medium
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