{"id":"GHSA-vrjv-mxr7-vjf8","summary":"markdown-it-py Denial of Service vulnerability","details":"Denial of service could be caused to markdown-it-py, before v2.2.0, if an attacker was allowed to force null assertions with specially crafted input.","aliases":["CVE-2023-26303","PYSEC-2023-24"],"modified":"2024-09-30T20:36:38.036289Z","published":"2023-02-23T00:30:39Z","database_specific":{"github_reviewed_at":"2023-02-23T19:40:55Z","nvd_published_at":"2023-02-23T00:15:00Z","cwe_ids":["CWE-173"],"severity":"HIGH","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26303"},{"type":"WEB","url":"https://github.com/executablebooks/markdown-it-py/pull/246"},{"type":"WEB","url":"https://github.com/executablebooks/markdown-it-py/commit/53ca3e9c2b9e9b295f6abf7f4ad2730a9b70f68c"},{"type":"WEB","url":"https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49"},{"type":"PACKAGE","url":"https://github.com/executablebooks/markdown-it-py"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/markdown-it-py/PYSEC-2023-24.yaml"}],"affected":[{"package":{"name":"markdown-it-py","ecosystem":"PyPI","purl":"pkg:pypi/markdown-it-py"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.0"}]}],"versions":["0.1.0","0.1.1","0.2.0","0.2.1","0.2.2","0.2.3","0.3.0","0.3.1","0.3.2","0.3.3","0.4.0","0.4.1","0.4.2","0.4.3","0.4.4","0.4.5","0.4.6","0.4.7","0.4.8","0.4.9","0.5.0","0.5.1","0.5.2","0.5.3","0.5.4","0.5.5","0.5.6","0.5.7","0.5.8","0.6.0","0.6.1","0.6.2","1.0.0","1.0.0b1","1.0.0b2","1.0.0b3","1.1.0","2.0.0","2.0.1","2.1.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/02/GHSA-vrjv-mxr7-vjf8/GHSA-vrjv-mxr7-vjf8.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}