{"id":"BIT-golang-2026-94447","summary":"Checksum database bypass for golang.org/toolchain in cmd/go","details":"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.","aliases":["CVE-2026-94447","GO-2026-6602"],"modified":"2026-10-16T09:55:44.518918993Z","published":"2026-10-16T08:40:11.458Z","database_specific":{"cpes":["cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://go.dev/cl/840785"},{"type":"WEB","url":"https://go.dev/issue/81834"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/U2fTuyDJznI"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94447"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2026-6602"}],"affected":[{"package":{"name":"golang","ecosystem":"Bitnami","purl":"pkg:bitnami/golang"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.26.9"},{"introduced":"1.27.0-0"},{"fixed":"1.27.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/golang/BIT-golang-2026-94447.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}