Intel

AIKIDO-2024-10039

holidays is vulnerable to Regular Expression Denial of Service (ReDoS)

Regular Expression Denial of Service (ReDoS) Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Apr 22, 2024

50

Medium Risk

This Affects:

pythonholidays
0.1 - 0.44
Fixed in 0.45
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TL;DR

The affected versions use a regular expression with inefficient, potentially polynomial worst-case computational complexity, leading to excessive CPU consumption in scripts/generate_release_notes.py.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

holidays is vulnerable to Regular Expression Denial of Service (ReDoS) in versions 0.1 - 0.44.

How to fix this

Upgrade the holidays library to the patch version.