Supabase incident

Sign-in failures for `signInWithIdToken` (OIDC) logins on free-tier projects

Minor Resolved Upstream link ↗

Started

August 19, 2026 at 12:47 PM UTC

Duration

3h 9m

Resolved

August 19, 2026 at 03:56 PM UTC

Updates timeline

  1. 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

  2. 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.

  3. 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.

  4. Resolved

    We have confirmed that the fix has been effective and are marking this incident as resolved.

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