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MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Description
In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.
Basic Information
ID
CVE-2026-56132
Source
mitre
Published
Jun 19, 2026 at 03:00
Affected Product
Vendor
libexpat project
Product
libexpat
Affected Versions
libexpat project libexpat 0