Resolved · lasted 7 h
Instructure outage on October 21
Reports for Instructure jumped to 76 an hour and stayed high for 7 h.
- Started
- 2:00 PM
- October 21, 2026 · UTC
- Back to normal
- 9:00 PM
- 7 h later
- Peak
- 76/hr
- 8× normal
- Instructure’s incident
- —
- PHP awareness
Reports during the outage
12:00 PM10:50 PM UTC
What Instructure said
status.instructure.comMonitoring8:43 PM
PHP awareness
- Monitoring · 8:43 PM
Instructure is aware of CVE-2026-109618 and CVE-2026-109619 (referred to as "PHP2Shell"), affecting PHP. The Canvas application does not use PHP and is not affected. We have completed an initial assessment of our other products. Where affected PHP versions are in use, we are prioritizing remediation and have implemented compensating controls and additional monitoring while that work is completed. We will update as remediation progresses.
Instructure posted its first update 6 h 43 min after reports started rising.
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Live status, today’s reports and other past outages.