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    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.

    Published:Apr 24, 2026
    Last Modified:Apr 28, 2026
    EPS:Apr 24, 2026
    EPSS Score:0.00031
    CVSS Score:7.5

    Affected Products

    Vendor
    Lxml
    Product
    Lxml

    Exploits

    https://bugs.launchpad.net/lxml/+bug/2146291

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-221 Data Serialization External Entities Blowup

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High