CVE-2026-41066

PoC —

CVSS 3.1

7.5 high

EPSS

<1%p25

Published

Apr 24, 2026 (Apr 24, 2026)

Modified

Jun 17, 2026

Description

lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.

Vendors: lxml
Products: lxml
Weakness: CWE-611
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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