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CVE-2026-56132

—
CVSS 3.1
6.9 medium
EPSS
<1%p1
Published
()
Modified
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.

Vendors
libexpat project
Products
libexpat
Weakness
CWE-821
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
NVD CVE.org GitHub PoCs EPSS (0.1%)

In the news

No ingested article mentions this CVE yet.