`python-multipart` is a streaming multipart parser for Python. 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, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HEncode Starlette
APPEncode< 0.36.2Fastapiexpert Python Multipart
APPFastapiexpert< 0.0.7Tiangolo Fastapi
APPTiangolo< 0.109.1
Related vulnerabilities
Starlette is a lightweight ASGI framework/toolkit. From 0.4.1 until 1.3.1, request.form() accepts max_fields a...
Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, when parsing application/x-www-f...
Starlette is a lightweight ASGI framework/toolkit. In versions 1.0.1 and earlier, StaticFiles on Windows is vu...
Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnera...
Directory traversal vulnerability in Starlette versions 0.13.5 and later and prior to 0.27.0 allows a remote u...