CVE-2024-21503

medium

Description

Versions of the package black before 24.3.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the lines_with_leading_tabs_expanded function in the strings.py file. An attacker could exploit this vulnerability by crafting a malicious input that causes a denial of service. Exploiting this vulnerability is possible when running Black on untrusted input, or if you habitually put thousands of leading tab characters in your docstrings.

References

https://security.snyk.io/vuln/SNYK-PYTHON-BLACK-6256273

https://github.com/psf/black/releases/tag/24.3.0

https://github.com/psf/black/commit/f00093672628d212b8965a8993cee8bedf5fe9b8

Details

Source: Mitre, NVD

Published: 2024-03-19

Updated: 2024-07-03

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity: Medium