CVE-2024-3651

HIGH

KJD Internationalized Domain Names IN Applications - Denial of Service

Title source: rule
STIX 2.1

Description

A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6. The issue arises from the function's handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the `idna.encode()` function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size.

Scores

CVSS v3 7.5
EPSS 0.0073
EPSS Percentile 72.7%
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 none
Automatable no
Technical Impact partial

Details

CWE
CWE-1333
Status published
Products (2)
kjd/internationalized_domain_names_in_applications 0.2 - 3.7
pypi/idna 0 - 3.7PyPI
Published Jul 07, 2024
Tracked Since Feb 18, 2026