Denial of Service (DoS) by Sending Large Filename at File Upload Endpoint in gradio-app/gradio
Priority HIGH 72CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-400.
Summary
A Denial of Service (DoS) vulnerability was discovered in the file upload feature of gradio-app/gradio version 0.39.1. The vulnerability is due to improper handling of form-data with a large filename in the file upload request. By sending a payload with an excessively large filename, the server becomes overwhelmed and unresponsive, leading to unavailability for legitimate users.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00737 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| gradio-app | gradio-app/gradio | up to latest | — | No fix listed | CNA |
- gradio-app/gradio Vendorgradio-app Affected up to latest Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gradio_project:gradio:0.39.1:*:*:*:*:python:*:* | 0.39.1 | Vulnerable | gradio-app |
- cpe:2.3:a:gradio_project:gradio:0.39.1:*:*:*:*:python:*:* Versions 0.39.1 Vulnerable ·gradio-app
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-0187
- 2026-10-03 Alias added: GHSA-jm82-665g-74jp
References
More gradio-app Gradio vulnerabilities
- TI-2024-26222 Gradio v4.36.1 was discovered to contain a code injection vulnerability via the component… CVSS 3.1CRITICAL 9.8
- TI-2024-01607 Local File Inclusion in gradio-app/gradio CVSS 3.1HIGH 7.5
- TI-2024-00889 LFI in Gradio CVSS 3.1CRITICAL 9.4
- TI-2025-16852 Gradio Blocked Path ACL Bypass Vulnerability CVSS 4.0HIGH 8.7
- TI-2026-22690 Gradio has SSRF via Malicious `proxy_url` Injection in `gr.load()` Config Processing CVSS 3.1HIGH 8.6
- TI-2024-09866 Path Traversal in gradio-app/gradio CVSS 3.0HIGH 8.2
Sources
- CVE-2025-0187 · CVE Program
- CVE-2025-0187 · NVD
- FIRST EPSS
- GHSA-jm82-665g-74jp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences