Issues

• DefusableReader.close() raises AttributeError when the reader has no _fp_lock

  sissaschool/xmlschema#485 · Filter by author joepaddock-uk opened on Oct 20, 2026

• xmlschema-validate: Using xs:keyref in XSD for an optional element causes KeyError when XML does not contain this element

  sissaschool/xmlschema#483 · Filter by author jenisys opened on Oct 1, 2026

• xs:unique to elements in xs:alternative does not work

  sissaschool/xmlschema#482 · Filter by author iancanadell-bmw opened on Sep 11, 2026

• RecursionError validating a document that sets xsi:type on an element carrying an identity constraint with a .// selector

  sissaschool/xmlschema#481 · Filter by author johanzietsman-em opened on Aug 30, 2026

• Speeding up xml parsing to dictionary

  sissaschool/xmlschema#479 · Filter by author davlee1972 opened on Jun 23, 2026
  17

• issue with xml shema validator

  sissaschool/xmlschema#477 · Filter by author senthilkumaranT opened on May 30, 2026
  3

• Infinite loop while parsing an XSD (version 1.1)

  bug
  sissaschool/xmlschema#475 · Filter by author jtes opened on Apr 30, 2026
  3

• Nested import is not working correct

  sissaschool/xmlschema#474 · Filter by author pe2mbs opened on Apr 29, 2026
  2

• False positives in schema validation, when schema type inheritance defines prohibited attribute twice

  bug
  sissaschool/xmlschema#473 · Filter by author TheMinefighter opened on Mar 27, 2026
  2

• dublincore.org blocks xmlschema with 403

  sissaschool/xmlschema#472 · Filter by author velle opened on Mar 25, 2026
  2

• get_element() fails to find XSD element when path contains indexed suffixes starting from [2] - Expected behavior or regression?

  sissaschool/xmlschema#468 · Filter by author serwizz opened on Nov 12, 2025
  2

• XMLResource allow='all' default can lead to SSRF

  enhancement
  sissaschool/xmlschema#464 · Filter by author ngearhart opened on Aug 28, 2025
  4

• schematron

  enhancementhelp wanted
  sissaschool/xmlschema#286 · Filter by author robbert-harms opened on Feb 25, 2022
  4