Vulnerability · Published Feb 27, 2026 · Assigned by GitHub_M
CVE-2026-28414Gradio has Absolute Path Traversal on Windows with Python 3.13+
High 7.5
In plain English
A high-severity security flaw in gradio from gradio-app. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 3.1% (higher than 88% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei. Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | gradio | 6.7.0 | GHSA-39mp-8hj3-5c49 |
| PyPI | gradio | 6.7.0 | PYSEC-2026-64 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| gradio-app | gradio | < 6.7 |
Weakness: CWE-36 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- https://github.com/gradio-app/gradio/security/advisories/GHSA-39mp-8hj3-5c49 x_refsource_CONFIRM