libexpat

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• XML_ParseBuffer() leaves m_eventPtr/m_eventEndPtr pointing at stale data on a successful, non-final return

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  Difficulty 3/5 1-2 days Newbie friendliness 56/100

  libexpat/libexpat#1430 · Opened Oct 16, 2026

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• Pass the entity name to the external entity ref handler for the internal subset's DTD, rather than NULL

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  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  libexpat/libexpat#1429 · Opened Oct 16, 2026

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• XML_GetCurrentByteIndex64() returns -1 instead of a meaningful offset when m_eventPtr is NULL

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  Difficulty 2/5 1-3 hours Newbie friendliness 75/100

  libexpat/libexpat#1428 · Opened Oct 16, 2026

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• Understand memory consumption and limit guarantees of libexpat

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  question

  Difficulty 5/5 Over a week Newbie friendliness 35/100

  libexpat/libexpat#1423 · 1 comment · Opened Oct 12, 2026

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• use of `debugLevel` with signed/unsigned literals

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  Difficulty 1/5 Under an hour Newbie friendliness 44/100

  libexpat/libexpat#1422 · Opened Oct 12, 2026

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• Release Expat 2.9.1 (ETA 2026-10-26)

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  releasing security

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  libexpat/libexpat#1416 · Opened Oct 6, 2026

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• Unfixed non-public security issues

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  bug help wanted security

  Difficulty 5/5 Over a week Newbie friendliness 10/100

  libexpat/libexpat#1160 · Opened Mar 6, 2026

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• [CVE-2025-66382] Another unfixed non-public denial-of-service vulnerability (that affects all releases of Expat)

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  bug help wanted security

  Difficulty 5/5 Over a week Newbie friendliness 10/100

  libexpat/libexpat#1076 · Opened Oct 4, 2025

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• expat-config-version.cmake contains bitness-specific information

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  mac-os question

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  libexpat/libexpat#875 · 9 comments · Opened Jun 16, 2024

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• [wontfix][>=2.3.0] Autotools: Generated CMake config does not respect --includedir --libdir

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  bug wontfix

  Difficulty 3/5 Half a day Newbie friendliness 25/100

  libexpat/libexpat#501 · 1 comment · Opened Jul 3, 2021

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• How to successfully avoid integer overflow?

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  question

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libexpat/libexpat#371 · 13 comments · Opened Dec 10, 2019

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• Decide on unused C/C++ code

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  libexpat/libexpat#119 · 3 comments · Opened Aug 12, 2017

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• Extend API to communicate/enforce requirements on entropy

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  libexpat/libexpat#96 · 8 comments · Opened Jul 23, 2017

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• Get number of expected test failures down to zero / Test Suite Analysis

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  libexpat/libexpat#75 · 2 comments · Opened Jul 11, 2017

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• Propagate errors from generate_hash_secret_salt up to XML_Parse/XML_ParseBuffer?

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  libexpat/libexpat#36 · 2 comments · Opened Jun 7, 2017

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• Push migration to GitHub further

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  hosting

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libexpat/libexpat#1 · 16 comments · Opened Jan 28, 2017

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• Processor state confusion related to CDATA handling

  Possibly taken @shivampwm2020 claimed this 4 days ago. Open

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  bug help wanted

  Difficulty 4/5 3-5 days Newbie friendliness 12/100

  libexpat/libexpat#1419 · Opened Oct 8, 2026

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• The Expat parser fails to validate the XML version string correctly (with regard to XML 1.0r4)

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  libexpat/libexpat#967 · 5 comments · 2 reactions · Opened Feb 27, 2025

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• Support for XML 1.0r5/1.1 (was: XML Parser does not respect valid XML Start and Name chars from XML specification 1.0r5 and after)

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  libexpat/libexpat#171 · 16 comments · Opened Nov 13, 2017

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