{"action":"Upgrade toolchain to 1.25.10 or later.","affected":[{"fixed":"1.25.10","introduced":"0"},{"fixed":"1.26.3","introduced":"1.26.0-0"}],"component":"toolchain","cve_ids":["CVE-2026-39817"],"ecosystem":"Go","epss":0.0017,"exploited":false,"fixed_versions":["1.25.10","1.26.3"],"id":"tcs_01M5KGH53QSTA6DV5EBD187G1K","modified_at":"2026-09-22T10:41:48.476924269Z","published_at":"2026-05-07T19:21:40Z","references":["https://osv.dev/vulnerability/GO-2026-4979","https://go.dev/issue/78778","https://go.dev/cl/767520","https://groups.google.com/g/golang-announce/c/qcCIEXso47M"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"GO-2026-4979","url":"https://osv.dev/vulnerability/GO-2026-4979"},{"source":"nvd","source_id":"CVE-2026-39817","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39817"}],"summary":"Invoking \"go tool pack\" does not sanitize output paths in cmd/go"}