CVE-2026-28414— Gradio has Absolute Path Traversal on Windows with Python 3.13+
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I. Basic Information for CVE-2026-28414
Vulnerability Information
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Vulnerability Title
Gradio has Absolute Path Traversal on Windows with Python 3.13+
Source: NVD (National Vulnerability Database)
Vulnerability Description
Gradio is an open-source Python package designed for quick prototyping. Prior to version 6.7, Gradio apps running on Window with Python 3.13+ are vulnerable to an absolute path traversal issue that enables unauthenticated attackers to read arbitrary files from the file system. Python 3.13+ changed the definition of `os.path.isabs` so that root-relative paths like `/windows/win.ini` on Windows are no longer considered absolute paths, resulting in a vulnerability in Gradio's logic for joining paths safely. This can be exploited by unauthenticated attackers to read arbitrary files from the Gradio server, even when Gradio is set up with authentication. Version 6.7 fixes the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
绝对路径遍历
Source: NVD (National Vulnerability Database)
Vulnerability Title
Gradio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gradio是Gradio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 6.7之前版本存在安全漏洞，该漏洞源于Python 3.13+中os.path.isabs定义变更导致绝对路径遍历逻辑缺陷，可能导致未经验证的攻击者从文件系统读取任意文件。
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 | < 6.7 | - |
II. Public POCs for CVE-2026-28414
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Gradio < 6.7 on Windows with Python 3.13+ contains an absolute path traversal caused by incorrect path validation in path joining logic, letting unauthenticated attackers read arbitrary files from the server. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-28414.yaml | POC Details |
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Same Patch Batch · gradio-app · 2026-02-27 · 4 CVEs total
| CVE-2026-28416 | 8.2 HIGH | Gradio has SSRF via Malicious `proxy_url` Injection in `gr.load()` Config Processing |
| CVE-2026-28415 | 4.3 MEDIUM | Gradio has Open Redirect in OAuth Flow |
| CVE-2026-27167 | Gradio: Mocked OAuth Login Exposes Server Credentials and Uses Hardcoded Session Secret |
IV. Related Vulnerabilities
Same product: gradio
- CVE-2026-28416
Gradio has SSRF via Malicious `proxy_url` Injection in `gr.l - CVE-2026-28415
Gradio has Open Redirect in OAuth Flow - CVE-2026-27167
Gradio: Mocked OAuth Login Exposes Server Credentials and Us - CVE-2025-48889
Gradio Allows Unauthorized File Copy via Path Manipulation - CVE-2025-5320
gradio-app gradio CORS is_valid_origin privilege escalation
Same vendor: gradio-app
- CVE-2026-28416
Gradio has SSRF via Malicious `proxy_url` Injection in `gr.l - CVE-2026-28415
Gradio has Open Redirect in OAuth Flow - CVE-2026-27167
Gradio: Mocked OAuth Login Exposes Server Credentials and Us - CVE-2025-48889
Gradio Allows Unauthorized File Copy via Path Manipulation - CVE-2025-5320
gradio-app gradio CORS is_valid_origin privilege escalation
Same weakness: CWE-36
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PaperCut NG/MF: Path Traversal in Shared Account Synchroniza - CVE-2026-44029
Nix 安全漏洞 - CVE-2026-7217
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AIOHTTP: UNC SSRF/NTLMv2 Credential Theft/Local File Read in - CVE-2026-4373
JetFormBuilder <= 3.5.6.2 - Unauthenticated Arbitrary File R
V. Comments for CVE-2026-28414
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