CVE-2026-28414

HIGH EXPLOITED NUCLEI

Gradio < 6.7.0 - Unauthenticated Absolute Path Traversal via Root-Relative Path Handling

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2026-28414 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.

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.

Nuclei Templates (1)

Gradio - Absolute Path Traversal
HIGHVERIFIEDby 0x_Akoko
Shodan: http.title:"Gradio"
FOFA: title="Gradio" || body="gradio-app"

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0421
EPSS Percentile 89.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

VulnCheck KEV 2026-05-31
CWE
CWE-36 CWE-22
Status published
Products (2)
gradio_project/gradio < 6.7.0
pypi/gradio 0 - 6.7.0PyPI
Published Feb 27, 2026
Tracked Since Feb 28, 2026