Unauthenticated file disclosure via JSON path handling
Published Jun 6, 2024 · Updated Oct 15, 2025
Path traversal in Gradio before 4.31.4 allows remote attackers to read server files through crafted JSON component output. The JSON postprocess() method parses attacker-controlled strings, and move_files_to_cache() treats any nested path key as a file object to copy into cache. Exploitation requires a reachable app whose callback returns attacker-influenced data through a JSON output component; disclosure is limited to files readable by the Gradio process.
Summary
What happened
Path traversal in Gradio before 4.31.4 allows remote attackers to read server files through crafted JSON component output. The JSON postprocess() method parses attacker-controlled strings, and move_files_to_cache() treats any nested path key as a file object to copy into cache. Exploitation requires a reachable app whose callback returns attacker-influenced data through a JSON output component; disclosure is limited to files readable by the Gradio process.
The record
- CVE
- CVE-2024-4941
- Published
- Jun 6, 2024
- Updated
- Oct 15, 2025
- Vendor
- Gradio
- Product
- Gradio
- Classifications
- CWE-22, CWE-20, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 6, 2024CVE publishedPublication date reported by the CVE source.
- Oct 15, 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=unspecified <4.31.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Snyk CVE-2024-4941 proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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