This page tracks the Alpine Linux fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-56407 →

ALPINE-CVE-2026-56407

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen.

Original description

The description as published by the source.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Alpine:v3.21 expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.2-r0"}]}]

Alpine:v3.22 expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.2-r0"}]}]

Alpine:v3.23 expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.2-r0"}]}]

Alpine:v3.24 expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.2-r0"}]}]