Summary
Expat is a C library for parsing XML documents.
Security Fix(es):
* expat: libexpat: Use-after-free vulnerability due to improper handler call depth tracking (CVE-2026-50219)
* expat: libexpat: Arbitrary Code Execution via Heap-based Buffer Overflow (CVE-2026-56132)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 9 | expat | 0:2.5.0-6.el9_8.3 |
Vulnerabilities 2
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Medium 6.9
In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing arra…
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Medium 4.9
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_Par…