{"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-2026-27144"],"ecosystem":"Go","epss":0.00261,"exploited":false,"fixed_versions":["1.25.9","1.26.2"],"id":"tcs_01M5KGGM8SKJTNY3MSBDJCTE8D","modified_at":"2026-07-30T10:59:53.765518177Z","published_at":"2026-04-07T22:53:49Z","references":["https://osv.dev/vulnerability/GO-2026-4867","https://go.dev/cl/763764","https://go.dev/issue/78371","https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"],"severity":{"label":"high","score":7.1},"sources":[{"source":"osv","source_id":"GO-2026-4867","url":"https://osv.dev/vulnerability/GO-2026-4867"},{"source":"nvd","source_id":"CVE-2026-27144","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27144"}],"summary":"Miscompilation allows memory corruption via CONVNOP-wrapped array copy in cmd/compile"}