{"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":"2026-05-08T21:29:47.246Z"},"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)"}]},"adp":[{"metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":5.9,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-08T16:58:23.255142Z","id":"CVE-2026-39817","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-08T21:29:47.246Z"}}]}}