CVE-2026-86119 Webstudio through 0.296.0 SSRF via /cgi proxy routes
Attackers can exploit unauthenticated SSRF in Webstudio proxy routes to access internal services and cloud metadata when the resize origin variable is unset.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86119?
CVE-2026-86119 is a critical server-side request forgery vulnerability in webstudio-is webstudio, published on 5 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-86119?
How do I fix CVE-2026-86119?
No fix has been published for CVE-2026-86119 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-86119 being exploited?
There is no known exploitation of CVE-2026-86119 in the wild and no public exploit code.
Sources
Also known as GHSA-474j-x27j-w5wx.