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All of v2.1.251 Home All releases olderv2.1.250
Claude Code v2.1.251

Session registration secrets now checked for staleness

Under the hood
Useful2 Signal3
Cloud Sessions

Session registration now rejects stale or mismatched short-lived tokens instead of reusing them blindly.

What

The bridge that registers a session with the worker service now validates the short-lived token it uses, rejecting one issued for a different session, declining to register a token no fresher than the one already held, and continuing to reuse a held token past a caller-supplied age threshold when the host has nothing newer to offer.

Details
  • Applies to bridge sessions that register via this token; registration goes to the worker register endpoint.
  • Rejections are logged as "work secret rejected".
Evidence

work secret rejected

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

See this entry in the whole of v2.1.251 →