tutoriel31 %A JWKS key rotation without transition period triggered 31% authentication failures for 4 mi…

JWKS rotation without overlap: a 4-minute production outage

A JWKS key rotation without transition period triggered 31% authentication failures for 4 minutes in production

Published 10sem1 sourceNotable

≈ 22sSpeed

The fact

Root cause: old keys removed before verifier caches refreshed, rejecting both old and new tokens simultaneously

Lesson learned: implement overlap window during key rotation to allow clients time to sync JWKS caches

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