[Snyk] Security upgrade lxml from 5.4.0 to 6.1.0

[appfire-developer]

Snyk has created this PR to fix 1 vulnerabilities in the pip dependencies of this project.

Snyk changed the following file(s):

• requirements.txt

⚠️ Warning

locust 1.3.1 requires pyzmq, which is not installed.
Flask 2.2.5 has requirement importlib-metadata>=3.6.0; python_version < "3.10", but you have importlib-metadata 3.1.1.
bzt 1.15.1 has requirement zipp==2.2.0, but you have zipp 3.15.0.
Appium-Python-Client 5.1.3 has requirement selenium<5.0,~=4.26, but you have selenium 4.11.2.

Breaking Change Risk

Notice: This assessment is enhanced by AI.

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🦉 XML External Entity (XXE) Injection

[appfire-developer]

This major version upgrade from lxml 5.4.0 to 6.1.0 introduces breaking changes related to Python version support and security defaults.

Key Changes:

• Python Version Support: Support for Python versions below 3.8 has been removed. Python 3.7 reached its end-of-life in June 2023, so projects should be on a newer version.
• Security Default Change: To address a vulnerability (CVE-2026-41066), the resolve_entities option in iterparse and ETCompatXMLParser now defaults to 'internal' instead of True. This prevents external entity injection (XXE) by default.
• Deprecation: The Schematron class is now deprecated and is planned to be removed in a future version.

Action Required:

• Verify Python Version: Ensure your environment is running Python 3.8 or a newer version.
• Check Parser Usage: If you use iterparse or ETCompatXMLParser and rely on resolving external entities, you must now explicitly set resolve_entities=True in the parser. It is recommended to review this usage for potential security implications.

Source: lxml Changelog

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