Changes / Snowflake / INC20000217
Snowflake: Major incident: INC20000217
Summary
Snowflake reported a major outage affecting Databases, Tables, and Views, causing delayed sign-ins, SSO login loops, query execution failures, and data-management errors. The incident ran from 2026-09-14 04:48 UTC to 2026-09-14 06:09 UTC (1 h 21 min); Snowflake implemented a fix and confirmed service restoration.
Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.
What changed
Before: not present
After: INC20000217
Before: not present
After: major
Before: not present
After: resolved
Before: not present
After: 2026-09-14 04:48 UTC
Before: not present
After: 2026-09-14 06:09 UTC
Before: not present
After: AWS - Asia Pacific (Jakarta) - Databases, Tables, and Views, AWS - Asia Pacific (Singapore) - Databases, Tables, and Views, AWS - Asia Pacific (Sydney) - Databases, Tables, and Views, AWS - Asia Pacific (Tokyo) - Databases, Tables, and Views, AWS - US East (Ohio) - Databases, Tables, and Views, Azure - Australia East (New South Wales) - Databases, Tables, and Views, Databases, Tables, and Views
Before: not present
After: Current status: We're investigating an issue with Snowflake Data Cloud. We'll provide an update within 1 hour.
Customer experience: Customers in the affected regions may experience performance degradation or issues logging into Snowflake, including delayed sign-ins, query execution failures, and errors managing data.
ETA: An ETA is not yet available. We'll provide one as soon as possible. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Workaround: There are currently no available workarounds for this issue.
Incident start time: 23:35 UTC September 13, 2026
Before: not present
After: Current status: We've identified the source of the issue, and we're developing and implementing a fix to restore service. We'll provide another update within 1 hour.
Customer experience: Customers hosted in the affected deployments may experience performance degradation or issues logging into Snowflake, including delayed sign-ins, and SSO login loops.
ETA: An ETA is not yet available. We'll provide one as soon as possible. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Workaround: There are currently no available workarounds for this issue.
Incident start time: 23:35 UTC September 13, 2026
Before: not present
After: Current status: We've implemented the fix for this issue, and we'll continue to monitor the environment until we're confident all services are functioning properly.
Customer experience: Customers hosted in the affected deployments may have experienced performance degradation or issues logging into Snowflake, including delayed sign-ins, and SSO login loops.
Incident start time: 23:35 UTC September 13, 2026
Incident end time: 05:18 UTC September 14, 2026
Preliminary root cause: An update intended to improve authentication handling caused a subset of single sign-on (SSO) sign-in attempts across multiple regions to fail or loop, preventing affected users from logging in to Snowflake.
Before: not present
After: Current status: We've implemented the fix for this issue and monitored the environment to confirm that service was restored. If you experience additional issues or have questions, please open a support case via Snowflake Community or the Support page in Snowsight.
Customer experience: Customers hosted in the affected deployments may have experienced performance degradation or issues logging into Snowflake, including delayed sign-ins, and SSO login loops.
Incident start time: 22:22 UTC September 13, 2026
Incident end time: 05:18 UTC September 14, 2026
Preliminary root cause: An update intended to improve authentication handling caused a subset of single sign-on (SSO) sign-in attempts across multiple regions to fail or loop, preventing affected users from logging in to Snowflake.
A root cause analysis (RCA) will be conducted and a summary will be made available within 5 business days.
First version of this incident archived by Rewindex. View the live incident (opens in new tab).
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Major incident: INC20000217 (this change) Snowflake reported a major outage affecting Databases, Tables, and Views, causing delayed sign-ins, SSO login loops, query execution failures, and data-management errors. The incident ran from 2026-09-14 04:48 UTC to 2026-09-14 06:09 UTC (1 h 21 min); Snowflake implemented a fix and confirmed service restoration. | Major incident |
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