CVE-2026-41066
lxml: Default configuration of iterparse() and ETCompatXMLParser() allows XXE to local files
- State
- Published
- Severity
- 7.5 High
- Published
- Apr 24, 2026
- Updated
- Apr 24, 2026
- Reserved
- Apr 16, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | GitHub_M |
Weaknesses
- CWE-611 Improper Restriction of XML External Entity Reference
Affected Products
| Product | Versions |
|---|---|
lxmllxml |
|
References
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