CVE-2023-30798 HIGH

CVE-2023-30798: MultipartParser DOS with too many fields or files in Starlette Framework

Vendor Encode
Product Starlette
Weakness CWE-400
Published April 21, 2023
Last update November 21, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

There MultipartParser usage in Encode's Starlette python framework before versions 0.25.0 allows an unauthenticated and remote attacker to specify any number of form fields or files which can cause excessive memory usage resulting in denial of service of the HTTP service.

Key dates

02Disclosure timeline

April 21, 2023 CVE published
November 21, 2025 Record updated