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CVE-2024-21503

Published: 19 March 2024

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.

Priority

Medium

Status

Package Release Status
black
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Needs triage

mantic Needs triage

upstream Needs triage