Vulnerability Report

CVE-2024-24762

Title: Encode Starlette Denial of Service (DoS)

Denial of Service (DoS)

Proof Of Concept

No public PoC currently indexed for CVE-2024-24762.

CWE Category CWE-1333
Published Date Feb 05, 2024
Modified Date May 05, 2025
Exploit Status Not Found
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
1.52%

Vulnerability Summary

CVE-2024-24762: `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.

Impacted Vendors

E
encode 1
F
fastapiexpert 1
N
n8n 1
T
tiangolo 1

Reference Links

https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4 https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74 https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5 https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238 https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc https://github.com/tiangolo/fastapi/releases/tag/0.109.1 https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389 https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4 https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74 https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5 https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238 https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc https://github.com/tiangolo/fastapi/releases/tag/0.109.1 https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2024-24762 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.