{"id":"CVE-2023-30421","details":"mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.","modified":"2026-08-12T03:51:48.058912296Z","published":"2025-04-19T00:00:00Z","database_specific":{"cna_assigner":"mitre","cwe_ids":["CWE-407"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30421.json"},"references":[{"type":"WEB","url":"https://github.com/boofish/json_bugs/blob/main/mjson"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30421.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30421"},{"type":"PACKAGE","url":"https://github.com/cesanta/mjson/releases"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cesanta/mjson","events":[{"introduced":"0"},{"last_affected":"032a2eaca1a989e56d88218f2a3cb91a68afebe8"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"1.2.7"}]}}],"versions":["1.2.7","1.2.6","1.2.5","1.2.4","1.2.3","1.2.2","1.2.1","1.2.0","v1.1.1","v1.1.0","1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-30421.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}