Is CVE-2026-41066 actively exploited?

No active exploitation of CVE-2026-41066 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-41066 be exploited remotely?

Yes. CVE-2026-41066 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-41066?

CVE-2026-41066 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-41066

HIGH

CVE-2026-41066

CWE-611Published: April 24, 2026· Updated: Apr 27, 2026

7.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-41066 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.