CVE-2026-56406

CVSS Score & Metrics

Base Score

6.9 / 10

Vector String

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

libexpat before 2.8.2 has an integer overflow in XML_ParseBuffer because it lacked a check that was present in XML_Parse.

Published Date

June 21, 2026

Last Modified

June 21, 2026

CWE ID

CWE-190

Source

NVD

Vendor

libexpat project

Product

libexpat