{"id":"CVE-2023-26302","aliases":["GHSA-jrwr-5x3p-hvc3","PYSEC-2023-23"],"url":"https://o3.security/vulnerability/CVE-2023-26302","summary":"markdown-it-py CLI crash on invalid UTF-8 characters","details":"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.","published":"2023-02-22T22:02:35.556Z","modified":"2026-07-15T01:48:55.518791130Z","cvss":{"score":3.3,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"markdown-it-py","fixedVersion":"2.2.0"}],"fix":{"url":"https://github.com/executablebooks/markdown-it-py/commit/53ca3e9c2b9e9b295f6abf7f4ad2730a9b70f68c","label":"executablebooks/markdown-it-py@53ca3e9"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26302.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26302"},{"type":"FIX","url":"https://github.com/executablebooks/markdown-it-py/commit/53ca3e9c2b9e9b295f6abf7f4ad2730a9b70f68c"},{"type":"PACKAGE","url":"https://github.com/executablebooks/markdown-it-py"},{"type":"PACKAGE","url":"https://github.com/executablebooks/markdown-it-py/releases"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:55.518791130Z"}}