CVE-2024-21503

Summary

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 Software

Weaknesses

• CWE-1333: Regular Expression Denial of Service (ReDoS)

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

CVE Program Container

Additional 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

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

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