CVE-2026-86119: Webstudio-Is Webstudio

High severity, CVSS 8.6. EPSS: 0.6% chance of exploitation in the next 30 days.

Webstudio through 0.296.0 contains an unauthenticated server-side request forgery vulnerability in the /cgi/image, /cgi/video, and /cgi/asset proxy routes when RESIZE_ORIGIN environment variable is unset. Attackers can supply arbitrary URLs to these endpoints to read cloud instance metadata, access internal services, and perform network reconnaissance on the instance infrastructure.

Affected products

• Webstudio-Is Webstudio: up to and including 0.296.0

Published 2026-09-05. Last modified 2026-09-24.