Bump path-to-regexp from 8.3.0 to 8.4.0 in /2026-02-making-and-breaking-agents-with-1000-tools/demo-code/agent

[dependabot]

Bumps path-to-regexp from 8.3.0 to 8.4.0.

Release notes

Sourced from path-to-regexp's releases.

8.4.0

Important

• Fix CVE-2026-4926 (GHSA-j3q9-mxjg-w52f)
• Fix CVE-2026-4923 (GHSA-27v5-c462-wpq7)

Fixed

• Restricts wildcard backtracking when using more than 1 in a path (pillarjs/path-to-regexp#421)

Changed

• Dedupes regex prefixes (pillarjs/path-to-regexp#422)
  • This will result in shorter regular expressions for some cases using optional groups
• Rejects large optional route combinations (pillarjs/path-to-regexp#424)
  • When using groups such as /users{/delete} it will restrict the number of generated combinations to < 256, equivalent to 8 top-level optional groups and unlikely to occur in a real world application, but avoids exploding the regex size for applications that accept user created routes

Commits

• 34cb451 8.4.0
• 22a9679 Reject large optional route combinations (#424)
• 8881a88 Byte optimization (#423)
• 43669ac Dedupe regex prefixes (#422)
• 4864654 Restrict repeated wildcard backtracking (#421)
• 05a5a97 Remove dependabot config (#404)
• 5b635cd Remove package-lock.json (#407)
• See full diff in compare view

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Summary by cubic

Upgrade path-to-regexp from 8.3.0 to 8.4.0 in 2026-02-making-and-breaking-agents-with-1000-tools/demo-code/agent to patch security issues and improve route regex performance. No application code changes; only package-lock.json updated.

• Dependencies
  • Bump path-to-regexp to 8.4.0 (fixes CVE-2026-4926 and CVE-2026-4923).
  • Changes: restricts wildcard backtracking, dedupes regex prefixes, and caps large optional route combinations (<256).
  • Impact: low; review routes with multiple wildcards or many optional groups.

^{Written for commit c55d0b4. Summary will update on new commits.}

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