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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.248 ·

npm package names are checked for path traversal

npm package names are now rejected if they contain path traversal characters.

Under the hood New Features
JSON All of v2.1.248
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
PluginsArea: what it touches
New FeaturesKind: in v2.1.248,
New FeaturesSection of the release
What

Package names are now validated against a schema that rejects anything containing .. or // and requires a valid scoped or unscoped npm name shape.

Details
  • The rejection message is "Package name cannot contain path traversal patterns".
Evidence

Package name cannot contain path traversal patterns

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.248 →

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