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[3.12] gh-115398: Expose Expat >=2.6.0 reparse deferral API (CVE-2023-52425) (GH-115623) - #116248
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…52425) (pythonGH-115623) Allow controlling Expat >=2.6.0 reparse deferral (CVE-2023-52425) by adding five new methods: - `xml.etree.ElementTree.XMLParser.flush` - `xml.etree.ElementTree.XMLPullParser.flush` - `xml.parsers.expat.xmlparser.GetReparseDeferralEnabled` - `xml.parsers.expat.xmlparser.SetReparseDeferralEnabled` - `xml.sax.expatreader.ExpatParser.flush` Based on the "flush" idea from python#115138 (comment) . - Please treat as a security fix related to CVE-2023-52425. Includes code suggested-by: Snild Dolkow <snild@sony.com> and by core dev Serhiy Storchaka. (cherry picked from commit 6a95676)
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As suggested by Serhiy Storchaka
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…t API availability (pythonGH-116278) Suggest use of "hasattr" with checking for 3.13 Expat API availability (cherry picked from commit 73807eb)
(cherry picked from commit eda2963)
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Allow controlling Expat >=2.6.0 reparse deferral (CVE-2023-52425) by adding five new methods:
xml.etree.ElementTree.XMLParser.flushxml.etree.ElementTree.XMLPullParser.flushxml.parsers.expat.xmlparser.GetReparseDeferralEnabledxml.parsers.expat.xmlparser.SetReparseDeferralEnabledxml.sax.expatreader.ExpatParser.flushBased on the "flush" idea from #115138 (comment) .
Includes code suggested-by: Snild Dolkow snild@sony.com
and by core dev Serhiy Storchaka.
(cherry picked from commit 6a95676)
XML_SetReparseDeferralEnabled#115398📚 Documentation preview 📚: https://cpython-previews--116248.org.readthedocs.build/