{"schema_version":"1.3.1","id":"GO-2026-4342","modified":"2026-01-28T19:08:28Z","published":"2026-01-28T19:08:28Z","aliases":["CVE-2025-61728","CVE-2025-61728"],"summary":"Excessive CPU consumption when building archive index in archive/zip","details":"archive/zip uses a super-linear file name indexing algorithm that is invoked the first time a file in an archive is opened. This can lead to a denial of service when consuming a maliciously constructed ZIP archive.","affected":[{"package":{"name":"stdlib","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.24.12"},{"introduced":"1.25.0"},{"fixed":"1.25.6"}]}],"ecosystem_specific":{"imports":[{"path":"archive/zip","symbols":["Reader.Open","Reader.initFileList"]}]}}],"references":[{"type":"FIX","url":"https://go.dev/cl/736713"},{"type":"REPORT","url":"https://go.dev/issue/77102"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc"}],"credits":[{"name":"Jakub Ciolek"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4342","review_status":"REVIEWED"}}