CVE-2026-59806: Open Redirect (CVSS 7.4)

Description

Gradio before 6.20.0 contains an open redirect and server-side request forgery vulnerability that allows attackers to redirect users to arbitrary URLs or perform client-side SSRF by supplying unvalidated HTTP/HTTPS URLs to the file_fetch() function in the /gradio_api/file= endpoint. Attackers can craft a malicious FileData response targeting internal endpoints such as cloud metadata services to retrieve sensitive credentials including EC2 IAM role credentials.

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CVSS v3.1 Score

7.4

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0025

Probability of exploitation

0.16%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-601 CWE-601

CWE-918 Server-Side Request Forgery (SSRF)

References

Other References

https://github.com/gradio-app/gradio/commit/1c5c53842df9c2750552d85c19a92e7e732cff3f https://github.com/gradio-app/gradio/issues/13593 https://github.com/gradio-app/gradio/pull/13596 https://github.com/gradio-app/gradio/releases/tag/gradio%406.20.0 https://www.vulncheck.com/advisories/gradio-open-redirect-and-ssrf-via-gradio-api-file-endpoint

Frequently Asked Questions

What is CVE-2026-59806? +

Gradio before 6.20.0 contains an open redirect and server-side request forgery vulnerability that allows attackers to redirect users to arbitrary URLs or perform client-side SSRF by supplying unvalidated HTTP/HTTPS URLs to the file_fetch() function in the /gradio_api/file= endpoint. Attackers can craft a malicious FileData response targeting internal endpoints such as cloud metadata services to retrieve sensitive credentials including EC2 IAM role credentials. It has a CVSS v3.1 base score of 7.4 (HIGH).

How severe is CVE-2026-59806? +

CVE-2026-59806 has a CVSS v3.1 score of 7.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0025, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-59806? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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