CVE-2026-41066: lxml: Default configuration of iterparse() and ETCompatXMLParser() allows XXE to local files

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-26

EPSS Score

0.03% (percentile: 9.1%)

Affected Products (1)

Other

• 21239-17084

Revision History

• 2026-04-26: Information published.