CVE-2024-30251CWE-835

Denial of service when trying to parse malformed POST requests in aiohttp

High · published May 2, 2024

CVSS v3.1
7.5
EPSS
1%
Percentile
65.2
In the wild
Unconfirmed
What it is

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In affected versions an attacker can send a specially crafted POST (multipart/form-data) request. When the aiohttp server processes it, the server will enter an infinite loop and be unable to process any further requests. An attacker can stop the application from serving requests after sending a single request. This issue has been addressed in version 3.9.4. Users are advised to upgrade. Users unable to upgrade may manually apply a patch to their systems. Please see the linked GHSA for instructions.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01094 · 65.2th percentile
Weakness
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')
Published
2024-05-02T13:55Z
EPSS history
Timeline
  • 02 MAY 13:55Z
    Denial of service when trying to parse malformed POST requests in aiohttp
    cvelistv5