{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-39817", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "state": "PUBLISHED", "assignerShortName": "Go", "dateReserved": "2026-04-07T18:13:03.524Z", "datePublished": "2026-05-07T19:41:18.993Z", "dateUpdated": "2026-05-07T19:41:18.993Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2026-05-07T19:41:18.993Z"}, "title": "Invoking \"go tool pack\" does not sanitize output paths in cmd/go", "descriptions": [{"lang": "en", "value": "The \"go tool pack\" subcommand (usually used only by the compiler as an internal tool with known-good inputs) does not sanitize output filenames. Extracting a malicious archive file with the \"pack\" subcommand can write files to arbitrary locations on the filesystem."}], "affected": [{"vendor": "Go toolchain", "product": "cmd/go", "collectionURL": "https://pkg.go.dev", "packageName": "cmd/go", "versions": [{"version": "0", "lessThan": "1.25.10", "status": "affected", "versionType": "semver"}, {"version": "1.26.0-0", "lessThan": "1.26.3", "status": "affected", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "references": [{"url": "https://go.dev/issue/78778"}, {"url": "https://go.dev/cl/767520"}, {"url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"}, {"url": "https://pkg.go.dev/vuln/GO-2026-4979"}], "credits": [{"lang": "en", "value": "Harshit Gupta (Mr HAX)"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The \"go tool pack\" subcommand (usually used only by the compiler as an internal tool with known-good inputs) does not sanitize output filenames. Extracting a malicious archive file with the \"pack\" subcommand can write files to arbitrary locations on the filesystem."}], "id": "CVE-2026-39817", "lastModified": "2026-05-07T20:38:04.860", "metrics": {}, "published": "2026-05-07T20:16:42.983", "references": [{"source": "security@golang.org", "url": "https://go.dev/cl/767520"}, {"source": "security@golang.org", "url": "https://go.dev/issue/78778"}, {"source": "security@golang.org", "url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"}, {"source": "security@golang.org", "url": "https://pkg.go.dev/vuln/GO-2026-4979"}], "sourceIdentifier": "security@golang.org", "vulnStatus": "Awaiting Analysis"}

{}

{"created": "2026-05-07T21:30:25.964056+00:00", "updated": "2026-05-07T21:30:25.964066+00:00", "vendors": [], "weaknesses": ["CWE-22", "CWE-73"]}