Sign-in failures for `signInWithIdToken` (OIDC) logins on free-tier projects
Incident Lifecycle
Incident Timeline
Monitoring
We've identified that starting 4pm UTC on August 18th we began seeing sign-in failures with signInWithIdToken (OIDC) logins on free-tier projects. Users authenticating with OIDC providers other than Google/Apple/Firebase may have seen failed login attempts.
We've identified the root cause and fix has been rolled out. We are monitoring for continued stability.
We've identified the root cause and fix has been rolled out. We are monitoring for continued stability.
Aug 19, 2026 at 1:01 PM UTC
Monitoring
We've identified that starting 4pm UTC on August 18th we began seeing sign-in failures with signInWithIdToken (OIDC) logins on free-tier projects. Users authenticating with OIDC providers other than Google/Apple/Firebase may have seen failed login attempts.
We've identified the root cause and fix has been rolled out.
We've identified the root cause and fix has been rolled out.
Aug 19, 2026 at 12:48 PM UTC
Monitoring
We've identified an issue causing sign-in failures for `signInWithIdToken` (OIDC) logins on free-tier projects. Users authenticating with non-Google/Apple/Firebase OIDC providers may see failed login attempts.
We've identified the root cause and fix has been rolled out.
Impacted timeframe was 18th August 4pm UTC - 19th Aug 10:30am UTC
We've identified the root cause and fix has been rolled out.
Impacted timeframe was 18th August 4pm UTC - 19th Aug 10:30am UTC
Aug 19, 2026 at 12:47 PM UTC
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