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Investigation of PHP Vulnerability CVE-2026-109618 and CVE-2026-109619

Incident Report for Guidewire

Investigating

Guidewire is aware of the recently disclosed vulnerabilities CVE-2026-109618 and CVE-2026-109619 affecting PHP that were made public on October 21, 2026. Investigation of impact is currently in progress. We will provide customers with additional updates and guidance as our investigation continues. Guidewire is handling these issues with the utmost priority. We currently have no evidence of any compromise of our systems or customer data.

Posted Oct 23, 2026 - 03:42 UTC

This incident affects: GUIDEWIRE HOME (GWH) (Montréal, N. Virginia, Paris, Sydney, Tokyo, Zurich).