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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.248 ·

Sandbox permission answers are matched to the machine that asked

Sandbox permission answers must come back from the same machine that asked.

You'll notice New Features
JSON All of v2.1.248
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SandboxArea: what it touches
New FeaturesKind: in v2.1.248,
New FeaturesSection of the release
What

When a sandboxed agent asks for a permission decision, the code that collects answers now checks that the answer came back for the same host that made the request, not just the same request id. A mismatched answer is refused and logged. Always on.

Details
  • Previously only the request id was compared, so an answer produced on another machine could be applied.
  • Hardening only; there is no flag and no behaviour change when everything matches.
Evidence

answered for a different host

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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