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

- Impact (vendor’s label): none
- Status: resolved
- Started: 2026-08-19 12:47 UTC · Resolved: 2026-08-19 15:56 UTC · Duration: 3.1 h
- Updates: 4
- [Vendor status page: https://status.supabase.com/incidents/01M0D0ZCS9D1W08F8WPSNGFDBV](https://status.supabase.com/incidents/01M0D0ZCS9D1W08F8WPSNGFDBV)
- [Company: Supabase](https://rewindex.com/company/supabase.md)

## Timeline of updates

- **monitoring** 2026-08-19 12:47 UTC: 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
- **monitoring** 2026-08-19 12:48 UTC: 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.
- **monitoring** 2026-08-19 13:01 UTC: 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.
- **resolved** 2026-08-19 15:56 UTC: We have confirmed that the fix has been effective and are marking this incident as resolved.


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Canonical: https://rewindex.com/company/supabase/incidents/01M0D0ZCS9D1W08F8WPSNGFDBV · Markdown: https://rewindex.com/company/supabase/incidents/01M0D0ZCS9D1W08F8WPSNGFDBV.md · JSON: https://rewindex.com/api/v1/companies/supabase/incidents/01M0D0ZCS9D1W08F8WPSNGFDBV · Generated 2026-10-18T10:38:09.392Z