{"cve":"CVE-2023-26302","nvd":{"published":"2023-02-22T23:15:17.677","modified":"2026-06-17T05:43:01.623","status":"Modified","description":"Denial of service could be caused to the command line interface of markdown-it-py, before v2.2.0, if an attacker was allowed to use invalid UTF-8 characters as input.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-173"],"references":["https://github.com/executablebooks/markdown-it-py/commit/53ca3e9c2b9e9b295f6abf7f4ad2730a9b70f68c","https://github.com/executablebooks/markdown-it-py/commit/53ca3e9c2b9e9b295f6abf7f4ad2730a9b70f68c"],"products":["executablebooks:markdown-it-py"],"source":"nvd","synced_at":"2026-10-19T21:37:41.955480748+00:00"},"epss":{"cve":"CVE-2023-26302","score":0.00227,"percentile":0.13467,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-jrwr-5x3p-hvc3","url":"https://osv.dev/vulnerability/GHSA-jrwr-5x3p-hvc3","summary":"markdown-it-py Denial of Service vulnerability in the command line interface","modified":"2024-09-30T17:01:37.639305Z","packages":[{"ecosystem":"PyPI","name":"markdown-it-py","purl":"pkg:pypi/markdown-it-py","ranges":["<2.2.0"],"fixed":["2.2.0"]}]},{"id":"PYSEC-2023-23","url":"https://osv.dev/vulnerability/PYSEC-2023-23","summary":"","modified":"2026-06-10T17:02:03.233399984Z","packages":[{"ecosystem":"PyPI","name":"markdown-it-py","purl":"pkg:pypi/markdown-it-py","ranges":["<2.2.0"],"fixed":["2.2.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}