CVE-2026-32776

Public on 2026-03-16
Modified on 2026-03-18
Description
A flaw was found in libexpat. A remote attacker could exploit this vulnerability by providing specially crafted XML content with empty external parameter entities. This could lead to a NULL pointer dereference, causing the application to crash and resulting in a Denial of Service (DoS).
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
5.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core expat Pending Fix
Amazon Linux 2023 expat Pending Fix
Amazon Linux 2 - Firefox Extra firefox Pending Fix
Amazon Linux 2023 firefox Pending Fix
Amazon Linux 2 - Core thunderbird Pending Fix
Amazon Linux 2023 xmlrpc-c Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H