Issues

• Have a TROPHY.md file to list bugs found

  fandango-fuzzer/fandango#1029 · Filter by author andreas-zeller opened on Oct 20, 2026

• Replace RepetitionBoundsConstraint with a less complex alternative.

  scope: enhancement
  fandango-fuzzer/fandango#1011 · Filter by author alex9849 opened on Sep 29, 2026

• DerivationTree._parent should not be set in DerivationTree constructor

  prio: lowscope: chore
  fandango-fuzzer/fandango#1009 · Filter by author alex9849 opened on Sep 28, 2026

• IO connectors In/Out/StdIn don't implement start() and stop() hooks

  fandango-fuzzer/fandango#1000 · Filter by author alex9849 opened on Sep 4, 2026
  

• --version should present commit on checkout

  prio: mediumscope: enhancement
  Feature

  fandango-fuzzer/fandango#981 · Filter by author riesentoaster opened on Aug 4, 2026

• allow underscore for integers

  fandango-fuzzer/fandango#954 · Filter by author R9295 opened on Jul 9, 2026

• Parser may not return all possible parses when using a cached value

  prio: lowscope: bug
  fandango-fuzzer/fandango#939 · Filter by author alex9849 opened on Jun 9, 2026
  

• + quantifier always returns only one instance of symbol

  fandango-fuzzer/fandango#927 · Filter by author dannytheway opened on May 27, 2026

• Constraint-aware parsing

  prio: low
  Feature

  fandango-fuzzer/fandango#918 · Filter by author andreas-zeller opened on May 19, 2026
  2

  

• Mishandled ambiguity with regex and no thrown FandangoParseErrors on failed parse

  fandango-fuzzer/fandango#905 · Filter by author reallyTG opened on May 5, 2026
  1

• fandango convert drops ANTLR non-greedy quantifiers (*?, +?, ??)

  fandango-fuzzer/fandango#871 · Filter by author Nuhiat-Arefin opened on Mar 24, 2026
  1

• Protocol Grammars using nested nonterminals as message starting symbol might trigger a NavigationError

  prio: mediumscope: bug
  fandango-fuzzer/fandango#860 · Filter by author alex9849 opened on Mar 11, 2026
  

• Conversion loses token-boundary semantics for ANTLR4 grammars

  fandango-fuzzer/fandango#859 · Filter by author Nuhiat-Arefin opened on Mar 10, 2026

• fandango convert incorrectly emits literal strings for ANTLR4 negated token sets ~(...)

  fandango-fuzzer/fandango#858 · Filter by author Nuhiat-Arefin opened on Mar 10, 2026

• Having a grammar containing the nonterminal <exists> leads to a parsing error.

  prio: lowscope: enhancementstatus: future work
  fandango-fuzzer/fandango#853 · Filter by author alex9849 opened on Mar 3, 2026
  3

• Issue on page /Constraints.html

  prio: mediumscope: documentation
  fandango-fuzzer/fandango#847 · Filter by author farbod-behnam opened on Mar 2, 2026
  1

  

• The benchmarking soft constraint test case fails on Windows in the CI

  prio: highscope: bug
  Bug

  fandango-fuzzer/fandango#845 · Filter by author riesentoaster opened on Feb 27, 2026

• Streamline spec parser unit test

  prio: highscope: chorestatus: discussion
  Task

  fandango-fuzzer/fandango#840 · Filter by author riesentoaster opened on Feb 27, 2026
  

• Address "unverified details" in Pipy

  prio: lowscope: documentation
  Task

  fandango-fuzzer/fandango#820 · Filter by author andreas-zeller opened on Feb 25, 2026
  3

  

• Internal AttributeError: 'ItemSearch' object has no attribute 'symbol'

  prio: mediumscope: bug
  Bug

  fandango-fuzzer/fandango#811 · Filter by author andreas-zeller opened on Feb 15, 2026
  5

  

• Issue on page /Protocols.html

  scope: documentation
  Task

  fandango-fuzzer/fandango#807 · Filter by author andreas-zeller opened on Feb 2, 2026
  

• Document max_repetitions

  prio: mediumscope: documentation
  Task

  fandango-fuzzer/fandango#797 · Filter by author farbod-behnam opened on Jan 28, 2026
  2

• Have a channel for announcing news and updates

  prio: mediumscope: documentationscope: enhancementstatus: discussion
  Feature

  fandango-fuzzer/fandango#785 · Filter by author andreas-zeller opened on Jan 22, 2026
  

• Positional arguments fail for functions with default parameters

  prio: mediumscope: bug
  Bug

  fandango-fuzzer/fandango#784 · Filter by author ninjafail opened on Jan 22, 2026
  

• Aim for constructive diversity (= grammar coverage) in regular input fuzzing, too

  prio: medium
  Feature

  fandango-fuzzer/fandango#750 · Filter by author andreas-zeller opened on Jan 8, 2026
  1