File disclosure and SSRF via unfiltered routes
Published Jun 7, 2023 · Updated Jan 6, 2025
Path and URL validation flaws in Gradio before 3.34.0 allow remote attackers to read server files and proxy arbitrary requests. The /file route accepted paths not safely constrained to approved directories, while build_proxy_request forwarded hosts not loaded through gr.load(). A shared, network-reachable app exposes these routes without authentication, enabling file disclosure, SSRF, and Hugging Face token harvesting.
Summary
What happened
Path and URL validation flaws in Gradio before 3.34.0 allow remote attackers to read server files and proxy arbitrary requests. The /file route accepted paths not safely constrained to approved directories, while build_proxy_request forwarded hosts not loaded through gr.load(). A shared, network-reachable app exposes these routes without authentication, enabling file disclosure, SSRF, and Hugging Face token harvesting.
The record
- CVE
- CVE-2023-34239
- Published
- Jun 7, 2023
- Updated
- Jan 6, 2025
- Vendor
- Gradio
- Product
- Gradio
- Classifications
- CWE-20, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 7, 2023CVE publishedPublication date reported by the CVE source.
- Jan 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 3.34.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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