Detections
Analytics

CVE-2026-56406

medium

Description

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

References

https://github.com/libexpat/libexpat/pull/1255

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-38183

Details

Source: Mitre, NVD

Published: 2026-06-21

Updated: 2026-06-23

Named Vulnerability: GHSA-v2j6-3q6q-gm3g

Risk Information

CVSS v2

Base Score: 5.9

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:P

Severity: Medium

CVSS v3

Base Score: 6.9

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

Severity: Medium

EPSS

EPSS: 0.00174