Guidewire incident
Investigation of the Compromise of Third-Party Certificate Authority (CA)
Resolved after 21 hours 42 minutes, affecting Montréal and N. Virginia and 1 more, on October 23, 2026.
Guidewire is aware of a third-party certificate authority (CA) issue reported on October 20, 2026. Upon disclosure, Guidewire immediately initiated an investigation across all our applications, systems, and services. Our investigation is ongoing, and at this time we have found no evidence of compromise or impact to our subscription services. We will continue to monitor our systems closely and will provide further updates through this technical bulletin should actionable new information arise. Please refer to Guidewire Community for more information. https://community.guidewire.com/customers/s/article/Guidewire-Security-Remediation-Update-Third-Party-Certificate-Authority-CA-Issue
Affected components
Update timeline
- investigating Oct 23, 2026, 04:00 AM UTC
Guidewire is aware of the recently disclosed eMudhra Intermediate Certificate Authority (CA) compromise that was made public on October 20, 2026. Guidewire investigates these issues with the utmost priority and has immediately initiated such an investigation to assess any potential impact. We will provide customers with additional updates and guidance as our investigation continues.
- resolved Oct 24, 2026, 01:42 AM UTC
Guidewire is aware of a third-party certificate authority (CA) issue reported on October 20, 2026. Upon disclosure, Guidewire immediately initiated an investigation across all our applications, systems, and services. Our investigation is ongoing, and at this time we have found no evidence of compromise or impact to our subscription services. We will continue to monitor our systems closely and will provide further updates through this technical bulletin should actionable new information arise. Please refer to Guidewire Community for more information. https://community.guidewire.com/customers/s/article/Guidewire-Security-Remediation-Update-Third-Party-Certificate-Authority-CA-Issue
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