{"id":"CVE-2026-94447","revision":"1c003508ee89437c9bd41a9fcf37fc9c","records":[{"revision":"1c003508ee89437c9bd41a9fcf37fc9c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-94447","aliases":[],"title":"Checksum database bypass for golang.org/toolchain in cmd/go","description":"Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/toolchain go.sum entry and operates a malicious GOMODPROXY the user chooses to use can bypass the intended checksum. We now ensure that golang.org/toolchain always goes to the network for the canonical checksum.","state":0,"publishedAt":"2026-10-08T22:53:57.974+00:00","modifiedAt":"2026-10-15T15:42:37.164+00:00","affected":[{"ecosystem":"https://pkg.go.dev","name":"cmd/go","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Go toolchain\",\n                    \"product\": \"cmd/go\",\n                    \"collectionURL\": \"https://pkg.go.dev\",\n                    \"packageName\": \"cmd/go\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"1.26.9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"1.27.0-0\",\n                            \"lessThan\": \"1.27.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[],"references":["https://go.dev/cl/840785","https://go.dev/issue/81834","https://groups.google.com/g/golang-announce/c/U2fTuyDJznI","https://pkg.go.dev/vuln/GO-2026-6602"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-94447","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-94447","identifiers":["CVE-2026-94447"]},"retained":false,"historicalAffected":[]}],"coverage":[]}