lxml: Default configuration of iterparse() and ETCompatXMLParser() allows XXE to local files

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GHSA-VFMQ-68HX-4JFW lxml: Default configuration of iterparse() and ETCompatXMLParser() allows XXE to local files

Impact Using either of the two parsers in the default configuration with resolveentities=True allows untrusted XML input to read local files. Patches lxml 6.1.0 changes the default to resolveentities='internal', thus disallowing local file access by default. Workarounds Setting the resolveentitie...