# Semgrep: Logins are failing for users via GitHub auth

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-05-20 17:34 UTC · Resolved: 2026-05-20 18:18 UTC · Duration: 44 min
- Updates: 4 · Affected components: Login/SSO, semgrep.dev - Login/SSO
- [Vendor status page: https://stspg.io/pt3vqkp32fpp](https://stspg.io/pt3vqkp32fpp)
- [Company: Semgrep](https://rewindex.com/company/semgrep.md)

## Summary

Semgrep reported a major outage affecting GitHub-auth logins starting 2026-05-20 17:34 UTC; SSO logins were unaffected. A fix was rolled out at 17:49 UTC, restoring logins, and the incident was resolved at 2026-05-20 18:18 UTC after 44 min. _(machine-written, sol)_
## Timeline of updates

- **identified** 2026-05-20 17:34 UTC: We are currently observing login issues using GitHub auth. Our team has identified the issue and is currently working on a fix. SSO logins are working as expected and are not impacted.
- **monitoring** 2026-05-20 17:49 UTC: We have rolled out a fix, and logins are now working as expected. We are closely monitoring to ensure continued stability.
- **monitoring** 2026-05-20 18:17 UTC: This incident has been resolved.
- **resolved** 2026-05-20 18:18 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2026-05-20 17:34 UTC: [Major incident: Logins are failing for users via GitHub auth](https://rewindex.com/change/i3de15037cd3916.md)


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Canonical: https://rewindex.com/company/semgrep/incidents/b3ns2rs4wkdt · Markdown: https://rewindex.com/company/semgrep/incidents/b3ns2rs4wkdt.md · JSON: https://rewindex.com/api/v1/companies/semgrep/incidents/b3ns2rs4wkdt · Generated 2026-10-18T12:22:32.177Z