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Cross-session authorization

Authorization controls that bind asynchronous jobs, messages or results to the client or session that created them.

Topic kind
pattern

Definition & limits

Identifiers are not authorization. Multi-client task systems need an explicit ownership decision before list, get, result, cancel or elicitation operations cross a session boundary.

Examples

  • MCP Python SDK experimental tasks lacked creator-session binding in affected versions.

Research using this topic (3)

AnalysisThe sandbox was isolated. The shared service was not.CaseMCP Python SDK tasks crossed client-session boundariesNewsMCP Python SDK advisories expose task ownership and browser-origin gaps

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DiggingBeagle. “Cross-session authorization.” https://diggingbeagle.com/concepts/cross-session-authorization/

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