GitHub Advisoryadvisory · PyPI

GHSA-39mp-8hj3-5c49 Gradio is Vulnerable to Absolute Path Traversal on Windows with Python 3.13+

HIGH Published 2026-03-01 Modified 2026-06-06 Official page ↗
Aliases
CVE-2026-28414
Ecosystem
PyPI
Packages
gradio
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-22, CWE-36
Reviewed
2026-03-01

Affected packages

• PyPI gradio: < 6.7.0 → fixed in 6.7.0

Description

Summary 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. Details 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. PoC ``` % curl http://10.10.10.10:7860/static//windows/win.ini ; for 16-bit app support [fonts] [extensions] [mci extensions] [files] [Mail] MAPI=1 ``` Impact Arbitrary file read in the context of the Windows user running Gradio.

Related

Alias · CVE (1)

  • CVE-2026-28414 Gradio is an open-source Python package designed for quick prototyping. vulnerability

Weakness · CWE (2)

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
  • CWE-36 Absolute Path Traversal weakness

References