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,
References (1)
Core 1
Core References
Scores
CVSS v3
4.9
EPSS
0.0010
EPSS Percentile
1.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-416
Status
published
Products (2)
libexpat project/libexpat
< 2.8.2
libexpat_project/libexpat
< 2.8.2
Published
Jun 04, 2026
Tracked Since
Jun 04, 2026