CVE-2026-28414

Gradio has Absolute Path Traversal on Windows with Python 3.13+

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

gradio-app · gradio

CVSS v3.1 GITHUB

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

2.54% chance of exploitation in the next 30 days, 85th percentile

Nuclei

high · CWE-36

Published

2026-02-27

Updated

2026-03-02

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-28414.yaml

Security advisories

• gradio-app/gradio/security/advisories/GHSA-39mp-8hj3-5c49
• advisories/GHSA-39mp-8hj3-5c49

References

• CVE Record
• NVD entry