{"action":"Upgrade black to 24.3.0 or later.","affected":[{"fixed":"24.3.0","introduced":"0"}],"component":"black","cve_ids":["CVE-2024-21503"],"ecosystem":"PyPI","epss":0.00979,"exploited":false,"fixed_versions":["24.3.0"],"ghsa_id":"GHSA-fj7x-q9j7-g6q6","id":"tcs_01M5KGN8S5F3QD41211VWD1RXF","modified_at":"2026-06-10T17:00:37.560368446Z","published_at":"2024-03-19T05:15:00Z","references":["https://osv.dev/vulnerability/PYSEC-2024-48","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","https://github.com/advisories/GHSA-fj7x-q9j7-g6q6"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2024-48","url":"https://osv.dev/vulnerability/PYSEC-2024-48"}],"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 e"}