Scribbles incident
Instructure is aware of CVE-2026-109618 and CVE-2026-109619 (referred to as "PHP2Shell"), affecting PHP.
Resolved after 5 hours 27 minutes, on October 21, 2026.
We have assessed all products on this status page. Where action was needed to protect customer-facing services, the remediation is complete. This is the final update.
Update timeline
- investigating Oct 21, 2026, 08:45 PM UTC
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.
- investigating Oct 21, 2026, 09:57 PM UTC
We are continuing to investigate this issue.
- investigating Oct 21, 2026, 10:52 PM UTC
We are continuing to investigate this issue.
- investigating Oct 22, 2026, 12:21 AM UTC
We are continuing to investigate this issue.
- resolved Oct 22, 2026, 02:12 AM UTC
We have assessed all products on this status page. Where action was needed to protect customer-facing services, the remediation is complete. This is the final update.
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