Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/psf/black/commit/f00093672628d212b8965a8993cee8bedf5fe9b8
- https://github.com/psf/black/releases/tag/24.3.0
- https://security.snyk.io/vuln/SNYK-PYTHON-BLACK-6256273
- https://github.com/psf/black/commit/f00093672628d212b8965a8993cee8bedf5fe9b8
- https://github.com/psf/black/releases/tag/24.3.0
- https://security.snyk.io/vuln/SNYK-PYTHON-BLACK-6256273
FAQ
What is CVE-2024-21503?
CVE-2024-21503 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 e...
How severe is CVE-2024-21503?
CVE-2024-21503 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-21503?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.