CVE-2025-5320: Gradio CORS Origin Validation Bypass Vulnerability

# CVE-2025-5320: Gradio CORS Origin Validation Bypass Vulnerability

https://gcdradar.vercel.app/incidents/cve-2025-5320-gradio-cors-origin-validation-bypass-vulnerabi · AIR-2025-0294 · closed 2025-05-29

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-05-29
- AI role: Attack on AI
- Products: Gradio
- CVE ids: CVE-2025-5320
- CVSS: 3.7

## Summary

A vulnerability in Gradio affects the CORS Handler's origin validation logic via the localhost_aliases argument. Remote attackers can potentially bypass origin checks.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-05-29: CVE-2025-5320: A vulnerability classified as problematic has been found in gradio-app gradio up to 5.29.1. (https://nvd.nist.gov/vuln/detail/CVE-2025-5320)
- 2025-05-29: CVE-2025-5320: Gradio CORS Origin Validation Bypass Vulnerability (https://github.com/advisories/GHSA-wmjh-cpqj-4v6x)

## Sources

- 2025-05-29 GitHub Advisory Database: CVE-2025-5320: Gradio CORS Origin Validation Bypass Vulnerability https://github.com/advisories/GHSA-wmjh-cpqj-4v6x
- 2025-05-29 NVD: CVE-2025-5320: A vulnerability classified as problematic has been found in gradio-app gradio up to 5.29.1. https://nvd.nist.gov/vuln/detail/CVE-2025-5320

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.