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Claude Code Issues / #16864

[Bug] Maximum call stack size exceeded in markdown lexer

Resolved 💬 3 comments Opened Jan 8, 2026 by kwannz Closed Feb 22, 2026

Bug Description

ERROR Maximum call stack size exceeded

  • at RegExp.exec (<anonymous>)
  • iyA.lheading (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2065:637)
  • TC.blockTokens (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2072:237)
  • TC.lex (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2067:9)
  • e5.lex (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2066:4746)
  • uV (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2906:208)
  • GY (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:743:20692)
  • V8 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:743:39055)
  • Ae (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:743:49661)
  • TJ (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:743:85798)

+

Environment Info

  • Platform: darwin
  • Terminal: Apple_Terminal
  • Version: 2.1.1
  • Feedback ID: 8ddcb606-a7c3-4bca-b477-01bb86e56249

Errors

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