High severity8.6NVD Advisory· Published Sep 5, 2026
CVE-2026-86119
CVE-2026-86119
Description
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
1- Range: <=0.296.0
Patches
Vulnerability mechanics
References
5- github.com/webstudio-is/webstudio/blob/55920c57c4d3e128a0fa48fceabbbc3a1d73f1ef/apps/builder/app/routes/cgi.asset.$.tsnvd
- github.com/webstudio-is/webstudio/blob/55920c57c4d3e128a0fa48fceabbbc3a1d73f1ef/apps/builder/app/routes/cgi.image.$.tsnvd
- github.com/webstudio-is/webstudio/blob/55920c57c4d3e128a0fa48fceabbbc3a1d73f1ef/apps/builder/app/routes/cgi.video.$.tsnvd
- github.com/webstudio-is/webstudio/issues/5816nvd
- www.vulncheck.com/advisories/webstudio-through-0.296.0-ssrf-via-cgi-proxy-routesnvd
News mentions
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