CVE-2026-94447
Checksum database bypass for golang.org/toolchain in cmd/go
- State
- Published
- Severity
- 7.8 High
- Published
- Oct 8, 2026
- Updated
- Oct 15, 2026
- Reserved
- Sep 21, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-354 Improper Validation of Integrity Check Value
Affected Products
| Product | Versions |
|---|---|
cmd/goGo toolchain |
|
References
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