{"id":"CLEANSTART-2025-VY76861","summary":"flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Do...","details":"Security vulnerability affects the c-ares package. A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking.","modified":"2026-10-01T04:15:08.722116952Z","published":"2026-10-01T03:49:23.313106Z","upstream":["CVE-2021-3672"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2025/CLEANSTART-2025-VY76861.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2021-3672"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3672"}],"affected":[{"package":{"name":"c-ares","ecosystem":"CleanStart"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17.2-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2025/CLEANSTART-2025-VY76861.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"}]}