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

- Provider: [Supabase](https://down.guide/supabase)
- Level: confirmed
- Impact: Degraded
- lasted 3h 9m
- started 2026-08-19 12:47 UTC
- id: DWN-4f8e5a2d22
- Official page: https://status.supabase.com/incidents/01M0D0ZCS9D1W08F8WPSNGFDBV

## Updates from Supabase
### 2026-08-19 12:47 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

### 2026-08-19 12:48 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.

### 2026-08-19 13:01 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 are monitoring for continued stability.

### 2026-08-19 15:56 UTC: resolved
We have confirmed that the fix has been effective and are marking this incident as resolved.

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