FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.0.
:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.
CVE-2024-24762 - High Severity Vulnerability
Vulnerable Library - python_multipart-0.0.6-py3-none-any.whl
A streaming multipart parser for Python
Library home page: https://files.pythonhosted.org/packages/b4/ff/b1e11d8bffb5e0e1b6d27f402eeedbeb9be6df2cdbc09356a1ae49806dbf/python_multipart-0.0.6-py3-none-any.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt
Dependency Hierarchy: - :x: **python_multipart-0.0.6-py3-none-any.whl** (Vulnerable Library)
Found in HEAD commit: fda2a37b98507f17a864087fe28ef6b2dcf1984c
Found in base branch: 3.0
Vulnerability Details
FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.0.
Publish Date: 2024-02-05
URL: CVE-2024-24762
CVSS 3 Score Details (7.5)
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: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2024-24762
Release Date: 2024-02-05
Fix Resolution: python-multipart - 0.0.7