CVE-2024-24762

HIGH EPSS 71.5%
Published Feb 5, 20242y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Feb 5, 2024 2y ago
Last Modified Jun 17, 2026 2w ago

Description

`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 Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
71.5% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-1333
CWE-400 Uncontrolled Resource Consumption Resource Mgmt

Affected Products 4

VendorProductVersionRange
fastapiexpertpython-multipart* <0.0.7
fastapiexpertpython-multipart* <0.0.7
encodestarlette* <0.36.2
tiangolofastapi* <0.109.1

References 8

  • github.com https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4
    Patch
  • github.com https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p
    ExploitVendor Advisory
  • github.com https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74
    Product
  • github.com https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5
    Patch
  • github.com https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238
    Broken Link
  • github.com https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc
    Patch
  • github.com https://github.com/tiangolo/fastapi/releases/tag/0.109.1
    Product
  • github.com https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389
    Broken Link

Remediation

  • github.com https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4
    Patch
  • github.com https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5
    Patch
  • github.com https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc
    Patch