Cursor outage on September 15, 2026: Investigating service degradation

Cursor reported an incident affecting Cursor for 33 minutes on 15 September 2026, from 21:26 to 22:00 UTC.

cursor.com All times UTC

Resolved

Official incident reported by Cursor

Started: 21:26; 15 Sep 2026 UTC
Resolved: 22:00; 15 Sep 2026 UTC
Duration: 33m; 33 minutes
Impact: Minor; as rated by Cursor
Updates: 4; posted by Cursor

Timeline

All times UTC.

Official incident from Cursor

Investigating service degradation

Resolved Minor impact 15 Sep 2026 21:26 UTC View on Cursor's status page

21:26 Official
Investigating
We are investigating a service degradation. Affected agent surfaces: Composer and xAI.
21:38 Official
Monitoring
A fix has been implemented and we are monitoring for service restoration.
21:41 Official
Monitoring
A fix has been implemented and we are monitoring for service restoration. Only Grok 4.6 (non-fast) is affected in Cursor.
22:00 Official
Resolved
This incident has been resolved at 6pm Eastern.

"Official" rows are quoted from Cursor's public status page, status.cursor.com. Very long posts are shortened.

What our checkpoints saw

HostTracker's checkpoints, which test cursor.com from several locations, recorded no outage of 5 minutes or longer during this incident. A provider can report a problem that affects only some features, regions or accounts, which a check of the main address does not see. The live Cursor status shows what our checks see right now.

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Does your product depend on Cursor?

An outage like this one reaches your users through your product, and most teams hear about it from a customer rather than from a dashboard. HostTracker watches any endpoint you name - your own site, an API you call, a vendor you resell - from 300+ locations, confirms a failure from several of them before it says anything, and then tells you by email, SMS, voice call or your chat tool.

You get the same record you are reading here for your own services: every outage timestamped, with the checks that observed it.

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Independent measurement by HostTracker. Not affiliated with Cursor. Official updates are quoted from Cursor's public status page and remain Cursor's own words.