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CVE-2026-59806— Gradio < 6.20.0 - Open Redirect and SSRF via /gradio_api/file= endpoint

Quick assessment

Affected
gradio-app gradio
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gradio是Gradio公司开源的一个开源 Python 库,是通过友好的 Web 界面演示机器学习模型的方法。 Gradio 6.20.0之前版本存在安全漏洞，该漏洞源于对file_fetch()函数中未经验证的HTTP/HTTPS URL处理不当，可能允许攻击者重定向用户到任意URL或执行客户端SSRF，通过构造恶意FileData响应针对内部端点如云元数据服务以检索敏感凭据。

CVSS 7.4 · High EPSS 0.44% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
gradio-app gradio < 6.20.0 affected
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I. Basic Information for CVE-2026-59806

Vulnerability Information
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Vulnerability Title
Gradio < 6.20.0 - Open Redirect and SSRF via /gradio_api/file= endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Gradio before 6.20.0 contains an open redirect and server-side request forgery vulnerability that allows attackers to redirect users to arbitrary URLs or perform client-side SSRF by supplying unvalidated HTTP/HTTPS URLs to the file_fetch() function in the /gradio_api/file= endpoint. Attackers can craft a malicious FileData response targeting internal endpoints such as cloud metadata services to retrieve sensitive credentials including EC2 IAM role credentials.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
Gradio 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gradio是Gradio公司开源的一个开源 Python 库,是通过友好的 Web 界面演示机器学习模型的方法。 Gradio 6.20.0之前版本存在安全漏洞，该漏洞源于对file_fetch()函数中未经验证的HTTP/HTTPS URL处理不当，可能允许攻击者重定向用户到任意URL或执行客户端SSRF，通过构造恶意FileData响应针对内部端点如云元数据服务以检索敏感凭据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
gradio-app gradio 0 ~ 6.20.0 -

II. Public POCs for CVE-2026-59806

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 7042 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-59806

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Patches & Fixes for CVE-2026-59806 (2)

Vendor Advisories for CVE-2026-59806 (2)

Vendor Pages for CVE-2026-59806 (1)

IV. Related Vulnerabilities

Same product: gradio
Same vendor: gradio-app
Same weakness: CWE-601

V. Comments for CVE-2026-59806

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