Illustrative scenarioDate not recordedIllustrative scenario

OAuth Refresh Token Reuse Race Condition & Account Takeover

Simultaneous token refresh requests from multi-tab sessions triggered false reuse detection, locking user accounts.

Illustrative scenario, not a real incident

A composite failure pattern written by CollectSEA for learning and demos. It is NOT a documented real-world incident and has no primary source.

What happened

    Contributing factors stated by the source

    • Simultaneous token refresh requests from multi-tab sessions triggered false reuse detectio...

    The failure pattern

    Partial success leaves systems out of syncA multi-step workflow half-completes, or events arrive out of order, and two systems now disagree about what happened.How to prevent it Duplicate action after an ambiguous resultA request times out, the caller assumes it failed and retries, and the money moves (or the order ships) twice.How to prevent it
    Watch the pattern: Partial success leaves systems out of sync

    Related standards

    CollectSEA's mapping through this incident's failure pattern; not an official determination by the standards bodies.

    Building something similar?

    Describe your design and see every precedent that applies, with safeguards you can hand to your coding agent.

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    Incidents with the same pattern