CVE-2026-41066

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Source
https://cve.org/CVERecord?id=CVE-2026-41066
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-41066.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-41066
Aliases
Downstream
Related
Published
2026-04-24T16:45:19.617Z
Modified
2026-06-18T03:57:09.801109545Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
lxml: Default configuration of iterparse() and ETCompatXMLParser() allows XXE to local files
Details

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 resolveentities=True) allows untrusted XML input to read local files. Setting the resolveentities option explicitly to resolveentities='internal' or resolveentities=False disables the local file access. This vulnerability is fixed in 6.1.0.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41066.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-611"
    ]
}
References

Affected packages

Git / github.com/lxml/lxml

Affected ranges

Type
GIT
Repo
https://github.com/lxml/lxml
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
43722f4402afa48b7890a96ce012eb0b9b1af5be
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "6.1.0"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "6.1.0"
        }
    ],
    "cpe": "cpe:2.3:a:lxml:lxml:*:*:*:*:*:*:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Affected versions

lxml-0.*
lxml-0.5.1
lxml-0.6
lxml-0.7
lxml-0.9
lxml-1.*
lxml-1.0
lxml-1.0.beta
lxml-1.1
lxml-1.1alpha
lxml-1.1beta
lxml-1.2
lxml-2.*
lxml-2.0
lxml-2.0.1
lxml-2.0alpha1
lxml-2.0alpha2
lxml-2.0alpha3
lxml-2.0alpha4
lxml-2.0alpha5
lxml-2.0alpha6
lxml-2.0beta1
lxml-2.0beta2
lxml-2.1
lxml-2.1alpha1
lxml-2.1beta1
lxml-2.1beta2
lxml-2.1beta3
lxml-2.2
lxml-2.2.1
lxml-2.2.2
lxml-2.3
lxml-2.3.1
lxml-2.3alpha1
lxml-2.3alpha2
lxml-2.3beta1
lxml-3.*
lxml-3.0
lxml-3.0.1
lxml-3.0alpha1
lxml-3.0alpha2
lxml-3.0beta1
lxml-3.1.0
lxml-3.1.1
lxml-3.1beta1
lxml-3.2.0
lxml-3.2.1
lxml-3.2.2
lxml-3.2.3
lxml-3.3.0
lxml-3.3.0beta1
lxml-3.3.0beta2
lxml-3.3.0beta3
lxml-3.3.0beta4
lxml-3.3.0beta5
lxml-3.3.1
lxml-3.3.2
lxml-3.3.3
lxml-3.4.0
lxml-3.4.0beta1
lxml-3.4.1
lxml-3.5.0
lxml-3.5.0b1
lxml-3.6.0
lxml-3.6.1
lxml-3.7.0
lxml-3.7.1
lxml-3.7.2
lxml-3.8.0
lxml-3.8.0-py27fix
lxml-4.*
lxml-4.0.0
lxml-4.1.0
lxml-4.1.1
lxml-4.2.0
lxml-4.2.1
lxml-4.2.2
lxml-4.3.0
lxml-4.3.1
lxml-4.3.2
lxml-4.4.0
lxml-4.4.1
lxml-4.5.0
lxml-4.5.1
lxml-4.5.2
lxml-4.6.0
lxml-4.6.1
lxml-4.6.2
lxml-4.6.3
lxml-4.7.0
lxml-4.7.0-pre
lxml-4.7.1
lxml-4.8.0
lxml-4.9.0
lxml-4.9.1
lxml-4.9.2
lxml-5.*
lxml-5.0.0
lxml-5.0a0
lxml-5.1.0
lxml-5.1.0-1
lxml-5.1.0-2
lxml-5.1.1
lxml-5.2.0
lxml-5.2.1
lxml-5.3.0
lxml-6.*
lxml-6.0.0
lxml-6.0.1
lxml-6.0.2
lxml-6.0.3
lxml-6.0.4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-41066.json"