CVE-2024-24762
HIGHpython-multipart < 0.0.7 - Regular Expression Denial of Service via Content-Type Header Parsing
Title source: llmDescription
`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.
References (8)
Core 8
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p
Patch x_refsource_misc
https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4
Broken Link x_refsource_misc
https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389
Broken Link x_refsource_misc
https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238
Product x_refsource_misc
https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74
Patch x_refsource_misc
https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5
Patch x_refsource_misc
https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc
Product x_refsource_misc
https://github.com/tiangolo/fastapi/releases/tag/0.109.1
Scores
CVSS v3
7.5
EPSS
0.0152
EPSS Percentile
71.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1333
CWE-400
Status
published
Products (2)
fastapiexpert/python-multipart
< 0.0.7
pypi/python-multipart
0 - 0.0.7PyPI
Published
Feb 05, 2024
Tracked Since
Feb 18, 2026