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.
https://www.vulncheck.com/advisories/gradio-open-redirect-and-ssrf-via-gradio-api-file-endpoint
https://github.com/gradio-app/gradio/releases/tag/gradio%406.20.0
https://github.com/gradio-app/gradio/pull/13596
https://github.com/gradio-app/gradio/issues/13593
https://github.com/gradio-app/gradio/commit/1c5c53842df9c2750552d85c19a92e7e732cff3f
Published: 2026-07-08
Updated: 2026-07-08
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N
Severity: High
Base Score: 7.4
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Severity: High
Base Score: 4.9
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:H/SI:N/SA:N
Severity: Medium