A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling into the resulting cgo binary.
https://pkg.go.dev/vuln/GO-2026-4433
https://groups.google.com/g/golang-announce/c/K09ubi9FQFk
https://go.dev/issue/76697
https://go.dev/cl/734220
Source: Mitre, NVD
Published: 2026-02-05
Updated: 2026-02-10
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 8.6
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Severity: High
EPSS: 0.00013