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CVE-2021-43831— Files on the host computer can be accessed from the Gradio interface

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 2.5.0之前的版本存在安全漏洞，攻击者可利用该漏洞访问主机上的任何文件.

CVSS 7.7 · High EPSS 3.79% · P90

Public Exploits 1

Nuclei · 1 CVE-2021-43831.yaml [template]

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2021-43831

Vulnerability Information
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Vulnerability Title
Files on the host computer can be accessed from the Gradio interface
Source: CVE Program / CVE List V5
Vulnerability Description
Gradio is an open source framework for building interactive machine learning models and demos. In versions prior to 2.5.0 there is a vulnerability that affects anyone who creates and publicly shares Gradio interfaces. File paths are not restricted and users who receive a Gradio link can access any files on the host computer if they know the file names or file paths. This is limited only by the host operating system. Paths are opened in read only mode. The problem has been patched in gradio 2.5.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Gradio 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gradio是一个开源 Python 库，是通过友好的 Web 界面演示机器学习模型的方法。 Gradio 2.5.0之前的版本存在安全漏洞，攻击者可利用该漏洞访问主机上的任何文件.
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 < 2.5.0 -

II. Public POCs for CVE-2021-43831

# POC Description Source Link Shenlong Link
1 Files on the host computer can be accessed from the Gradio interface https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-43831.yaml POC Details
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III. Intelligence Information for CVE-2021-43831

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Patches & Fixes for CVE-2021-43831 (1)

Vendor Advisories for CVE-2021-43831 (1)

IV. Related Vulnerabilities

Same product: gradio
Same vendor: gradio-app
Same weakness: CWE-22

V. Comments for CVE-2021-43831

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