TI-2026-58918 Aliases CVE-2026-86119 GHSA-474j-x27j-w5wx

Webstudio through 0.296.0 SSRF via /cgi proxy routes

MEDIUM 46CWE-918Published 2026-09-05 · Updated 2026-09-24

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0057 47th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
webstudio-is	webstudio	up to 0.296.0	—	No fix listed	CNA

webstudio Vendorwebstudio-is Affected up to 0.296.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-86119
2026-10-03 Alias added: GHSA-474j-x27j-w5wx

References

Other 5

TI-2026-76925 Missing authorization in Webstudio exposes other users' project data CVSS 4.0LOW 2.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences