fastapi-0.115.12-py3-none-any.whl: 1 vulnerabilities (highest severity is: 5.3) #243
Description
Vulnerable Library - fastapi-0.115.12-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /tmp/ws-ua_20250321171515_XNDBOP/python_DMCYIJ/202503211715181/env/lib/python3.9/site-packages/starlette-0.46.1.dist-info,/tmp/ws-ua_20250327161424_IPCJPZ/python_IXLIFT/202503271614271/env/lib/python3.9/site-packages/starlette-0.46.1.dist-info
Vulnerabilities
| Vulnerability | Severity |  CVSS |
Exploit Maturity | EPSS | Dependency | Type | Fixed in (fastapi version) | Remediation Possible** | Reachability |
|---|---|---|---|---|---|---|---|---|---|
| CVE-2025-54121 |  Medium |
5.3 | Not Defined | 0.0% | starlette-0.46.1-py3-none-any.whl | Transitive | N/A* | ❌ |
*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2025-54121
Vulnerable Library - starlette-0.46.1-py3-none-any.whl
The little ASGI library that shines.
Library home page: https://files.pythonhosted.org/packages/a0/4b/528ccf7a982216885a1ff4908e886b8fb5f19862d1962f56a3fce2435a70/starlette-0.46.1-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /tmp/ws-ua_20250321171515_XNDBOP/python_DMCYIJ/202503211715181/env/lib/python3.9/site-packages/starlette-0.46.1.dist-info,/tmp/ws-ua_20250327161424_IPCJPZ/python_IXLIFT/202503271614271/env/lib/python3.9/site-packages/starlette-0.46.1.dist-info
Dependency Hierarchy:
- fastapi-0.115.12-py3-none-any.whl (Root Library)
- ❌ starlette-0.46.1-py3-none-any.whl (Vulnerable Library)
Found in base branch: main
Vulnerability Details
Starlette is a lightweight ASGI (Asynchronous Server Gateway Interface) framework/toolkit, designed for building async web services in Python. In versions 0.47.1 and below, when parsing a multi-part form with large files (greater than the default max spool size) starlette will block the main thread to roll the file over to disk. This blocks the event thread which means the application can't accept new connections. The UploadFile code has a minor bug where instead of just checking for self._in_memory, the logic should also check if the additional bytes will cause a rollover. The vulnerability is fixed in version 0.47.2.
Publish Date: 2025-07-21
URL: CVE-2025-54121
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.0%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low