{"id":"GO-2026-4869","revision":"3afc87909bbf4535a72406a4079cb9a4","records":[{"revision":"3afc87909bbf4535a72406a4079cb9a4","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-4869","aliases":["BIT-golang-2026-32288","CVE-2026-32288"],"title":"Unbounded allocation for old GNU sparse in archive/tar","description":"tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the \"old GNU sparse map\" format.","state":0,"publishedAt":"2026-04-07T22:53:49+00:00","modifiedAt":"2026-10-07T10:41:45.7147872+00:00","affected":[{"ecosystem":"Go","name":"stdlib","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.25.9"},{"kind":"introduced","version":"1.26.0-0"},{"kind":"fixed","version":"1.26.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://go.dev/cl/763766","https://go.dev/issue/78301","https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-4869","license":"OSV · upstream source license applies","key":"osv:GO-2026-4869","identifiers":["GO-2026-4869","BIT-golang-2026-32288","CVE-2026-32288"]},"retained":false,"historicalAffected":[]}],"coverage":[]}