CVE-2026-50219

5.9 mediumEPSS 0.2%

Medium (5.9) in libexpat project libexpat. EPSS 0.2% chance of exploitation in the next 30 days.

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,

Severity

CVSS 3.1

5.9 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2026-06-04
Modified: 2026-07-22
Record from: the NVD, synced 2026-10-19

Affected

libexpat_project:libexpat

References

https://github.com/libexpat/libexpat/pull/1246

Check your stack JSON