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Low

Gradio CORS Origin Validation Bypass Vulnerability

  • Disclosed: 29.05.2025
  • Updated: 11.10.2026 13:18

A vulnerability classified as problematic has been found in gradio-app gradio up to 5.29.1. This affects the function is_valid_origin of the component CORS Handler. The manipulation of the argument localhost_aliases leads to origin validation error. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) gradio >= 5.0.0, <= 5.29.1 no fix

References

CVSS score 3.7/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-345
Platform
Python (PyPI)
Package
gradio
Disclosed
29.05.2025
Updated
11.10.2026 13:18

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-1423 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-wmjh-cpqj-4v6x - CC BY 4.0

Vulnerability history: gradio

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (51) in the archive
Total entries
51
First → latest
12.2021 07.2026
Without a fix
13
Exploited in attacks
0

Severity breakdown

  • Critical 5
  • High 19
  • Medium 22
  • Low 5

Disclosures per year

Severity:
  1. Gradio before 6.16.0 contain a path traversal vulnerability in the FileExplorer component's preprocess() method that allows unauthenticated attackers to escape the configured root directory by supplyi
    High CVE-2026-49119 < 6.16.0 6.16.0
  2. Gradio has SSRF via Malicious `proxy_url` Injection in `gr.load()` Config Processing
    High · 8.2 CVE-2026-28416 < 6.6.0 6.6.0
  3. Gradio is Vulnerable to Absolute Path Traversal on Windows with Python 3.13+
    High · 7.5 CVE-2026-28414 < 6.7.0 6.7.0
  4. Gradio CORS Origin Validation Bypass Vulnerability this entry
    Low · 3.7 CVE-2025-5320 >= 5.0.0, <= 5.29.1 no fix
  5. Gradio DOS in multipart boundry while uploading the file
    High · 7.5 CVE-2024-8966 <= 5.22.0 no fix
  6. Gradio Vulnerable to Denial of Service (DoS) via Crafted HTTP Request
    High · 7.5 CVE-2024-10624 >= 4.38.0, <= 5.0.0-beta.2 no fix
  7. Gradio Vulnerable to Arbitrary File Deletion
    High · 8.2 CVE-2024-10648 >= 4.0.0, <= 5.0.0b2 no fix
  8. Gradio Vulnerable to Denial of Service (DoS) via Crafted Zip Bomb
    High · 7.5 CVE-2024-10569 >= 4.0.0, <= 5.0.0b2 no fix
  9. Gradio Blocked Path ACL Bypass Vulnerability
    Critical CVE-2025-23042 < 5.11.0 5.11.0
  10. Gradio uses insecure communication between the FRP client and server
    High · 8.1 CVE-2024-47871 < 5.0.0 5.0.0
  11. Gradio has a race condition in update_root_in_config may redirect user traffic
    High · 7.0 CVE-2024-47870 < 5.0.0 5.0.0
  12. Gradio lacks integrity checking on the downloaded FRP client
    High · 7.5 CVE-2024-47867 < 5.0.0 5.0.0
  13. Gradios's CORS origin validation is not performed when the request has a cookie
    High · 8.8 CVE-2024-47084 < 4.44.0 4.44.0
  14. Gradio allows users to access arbitrary files
    High · 8.1 CVE-2024-1728 < 4.19.2 4.19.2
  15. Server-Side Request Forgery in gradio
    High · 8.6 CVE-2024-4325 <= 4.36.0 no fix
  16. A local file inclusion vulnerability exists in the JSON component of gradio-app/gradio version 4.25. The vulnerability arises from improper input validation in the `postprocess()` function within `gra
    High · 7.5 CVE-2024-4941 < 4.31.4 4.31.4
  17. A command injection vulnerability exists in the gradio-app/gradio repository, specifically within the 'test-functional.yml' workflow. The vulnerability arises due to improper neutralization of special
    Critical · 9.1 CVE-2024-4253 < 4.29.0 4.29.0
  18. Gradio before 4.20 allows credential leakage on Windows.
    High · 7.5 CVE-2024-34510 < 4.20.0 4.20.0
  19. gradio vulnerable to Path Traversal
    High · 7.5 CVE-2024-1561 < 4.13.0 4.13.0
  20. gradio Server-Side Request Forgery vulnerability
    High · 7.3 CVE-2024-2206 < 4.18.0 4.18.0
Show more (5) Showing 20 of 25

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