{"schema_version":"1.3.1","id":"GO-2025-4010","modified":"2025-10-29T21:49:58Z","published":"2025-10-29T21:49:58Z","aliases":["CVE-2025-47912","CVE-2025-47912"],"summary":"Insufficient validation of bracketed IPv6 hostnames in net/url","details":"The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: \"http://[::1]/\". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.","affected":[{"package":{"name":"stdlib","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.24.8"},{"introduced":"1.25.0"},{"fixed":"1.25.2"}]}],"ecosystem_specific":{"imports":[{"path":"net/url","symbols":["JoinPath","Parse","ParseRequestURI","URL.Parse","URL.UnmarshalBinary","parseHost"]}]}}],"references":[{"type":"REPORT","url":"https://go.dev/issue/75678"},{"type":"FIX","url":"https://go.dev/cl/709857"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI"}],"credits":[{"name":"Enze Wang, Jingcheng Yang and Zehui Miao of Tsinghua University"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2025-4010","review_status":"REVIEWED"}}