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CVE-2026-86119— Webstudio through 0.296.0 SSRF via /cgi proxy routes

Quick assessment

Affected
webstudio-is webstudio
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Webstudio 0.296.0 及更早版本中的 /cgi/image、/cgi/video 和 /cgi/asset 代理路由存在未认证的服务器端请求伪造漏洞，前提是 环境变量未设置。攻击者可以向这些端点提供任意 URL，从而读取云实例元数据、访问内部服务，并对实例基础设施进行网络侦察。

CVSS 8.6 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
webstudio-is webstudio ≤ 0.296.0 affected
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I. Basic Information for CVE-2026-86119

Vulnerability Information
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Vulnerability Title
Webstudio through 0.296.0 SSRF via /cgi proxy routes
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
webstudio-is webstudio 0 ~ 0.296.0 -

II. Public POCs for CVE-2026-86119

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III. Intelligence Information for CVE-2026-86119

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Patches & Fixes for CVE-2026-86119 (2)

Vendor Advisories for CVE-2026-86119 (1)

Proof of Concept for CVE-2026-86119 (1)

Other References for CVE-2026-86119 (2)

IV. Related Vulnerabilities

Same weakness: CWE-918

V. Comments for CVE-2026-86119

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