# Optimizely: Flags permission issue.

- Impact (vendor’s label): critical
- Status: resolved
- Started: 2026-05-20 09:42 UTC · Resolved: 2026-05-20 11:30 UTC · Duration: 1.8 h
- Updates: 4 · Affected components: Feature Experimentation - Optimizely REST API, Optimizely REST API, Application UI, Feature Experimentation - Application UI
- [Vendor status page: https://stspg.io/gwqp5cnrq7h0](https://stspg.io/gwqp5cnrq7h0)
- [Company: Optimizely](https://rewindex.com/company/optimizely.md)

## Summary

Optimizely reported a critical flags permission issue affecting Application UI and Optimizely REST API, including Feature Experimentation. It started at 2026-05-20 09:42 UTC and was resolved at 2026-05-20 11:30 UTC, lasting 1 h 48 min; a fix was implemented at 10:10 UTC, but no cause or specific customer impact was stated. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2026-05-20 09:42 UTC: We are currently investigating the issue.
- **investigating** 2026-05-20 10:01 UTC: We are continuing to investigate this issue.
- **monitoring** 2026-05-20 10:10 UTC: A fix has been implemented and we are monitoring the results.
- **resolved** 2026-05-20 11:30 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2026-05-20 09:42 UTC: [Critical incident: Flags permission issue.](https://rewindex.com/change/ic4f69a15bcc144.md)


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Canonical: https://rewindex.com/company/optimizely/incidents/w1rmvb8jgk53 · Markdown: https://rewindex.com/company/optimizely/incidents/w1rmvb8jgk53.md · JSON: https://rewindex.com/api/v1/companies/optimizely/incidents/w1rmvb8jgk53 · Generated 2026-10-18T09:34:56.922Z