CVE-2026-41066

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://bugs.launchpad.net/lxml/+bug/2146291	Exploit Issue Tracking Third Party Advisory
https://github.com/lxml/lxml/security/advisories/GHSA-vfmq-68hx-4jfw	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lxml:lxml:*:*:*:*:*:*:*:*

History

27 Apr 2026, 17:59

Type	Values Removed	Values Added
First Time		Lxml Lxml lxml
References	~~() https://bugs.launchpad.net/lxml/+bug/2146291 -~~	() https://bugs.launchpad.net/lxml/+bug/2146291 - Exploit, Issue Tracking, Third Party Advisory
References	~~() https://github.com/lxml/lxml/security/advisories/GHSA-vfmq-68hx-4jfw -~~	() https://github.com/lxml/lxml/security/advisories/GHSA-vfmq-68hx-4jfw - Mitigation, Vendor Advisory
CPE		cpe:2.3:a:lxml:lxml::::::::

24 Apr 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-24 17:16

Updated : 2026-06-17 10:46

NVD link : CVE-2026-41066

Mitre link : CVE-2026-41066

CVE.ORG link : CVE-2026-41066

JSON object : View

Products Affected

lxml

lxml

CWE

CWE-611

Improper Restriction of XML External Entity Reference

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