CVE-2026-94447

HIGHCVSS 7.8

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.

Timeline

Published:October 8th, 2026 11:17 PM

Last modified:October 15th, 2026 4:18 PM

CVSS Scoring

CVSS v3: 7.8 (HIGH)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-354

References & Reports

Advisories, patches, and third-party reports

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

Source: NIST NVD · Data may lag official sources by up to one minute