{"action":"Upgrade toolchain to 1.25.9 or later.","affected":[{"fixed":"1.25.9","introduced":"0"},{"fixed":"1.26.2","introduced":"1.26.0-0"}],"component":"toolchain","cve_ids":["CVE-2026-27140"],"ecosystem":"Go","epss":0.00658,"exploited":false,"fixed_versions":["1.25.9","1.26.2"],"id":"tcs_01M5KGGMY0A0ZQYX1WBJRXESM7","modified_at":"2026-05-13T10:44:29.004383754Z","published_at":"2026-04-07T22:53:49Z","references":["https://osv.dev/vulnerability/GO-2026-4871","https://go.dev/cl/763768","https://go.dev/issue/78335","https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"GO-2026-4871","url":"https://osv.dev/vulnerability/GO-2026-4871"},{"source":"nvd","source_id":"CVE-2026-27140","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27140"}],"summary":"Code execution vulnerability in SWIG code generation in cmd/go"}