GHSA-fj7x-q9j7-g6q6

Black vulnerable to Regular Expression Denial of Service (ReDoS)

At a glance

Published
Updated
CVE
CVE-2024-21503
Aliases
PYSEC-2024-48
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

Affected packages

PackageVersions
PyPI · blackintroduced 0, fixed 24.3.0

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database