{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32288", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "state": "PUBLISHED", "assignerShortName": "Go", "dateReserved": "2026-03-11T16:38:46.557Z", "datePublished": "2026-04-08T01:06:57.416Z", "dateUpdated": "2026-04-08T01:06:57.416Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2026-04-08T01:06:57.416Z"}, "title": "Unbounded allocation for old GNU sparse in archive/tar", "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"vendor": "Go standard library", "product": "archive/tar", "collectionURL": "https://pkg.go.dev", "packageName": "archive/tar", "versions": [{"version": "0", "lessThan": "1.25.9", "status": "affected", "versionType": "semver"}, {"version": "1.26.0-0", "lessThan": "1.26.2", "status": "affected", "versionType": "semver"}], "programRoutines": [{"name": "Reader.readOldGNUSparseMap"}, {"name": "readGNUSparseMap1x0"}, {"name": "Reader.Next"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption"}]}], "references": [{"url": "https://go.dev/cl/763766"}, {"url": "https://go.dev/issue/78301"}, {"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"}, {"url": "https://pkg.go.dev/vuln/GO-2026-4869"}], "credits": [{"lang": "en", "value": "Colin Walters (walters@verbum.org)"}, {"lang": "en", "value": "Uuganbayar Lkhamsuren (https://github.com/uug4na)"}, {"lang": "en", "value": "Jakub Ciolek"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-32288", "lastModified": "2026-04-08T02:16:03.707", "metrics": {}, "published": "2026-04-08T02:16:03.707", "references": [{"source": "security@golang.org", "url": "https://go.dev/cl/763766"}, {"source": "security@golang.org", "url": "https://go.dev/issue/78301"}, {"source": "security@golang.org", "url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"}, {"source": "security@golang.org", "url": "https://pkg.go.dev/vuln/GO-2026-4869"}], "sourceIdentifier": "security@golang.org", "vulnStatus": "Received"}

{}

{}