CVE-2023-45285: Golang Go

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

Using go get to fetch a module with the ".git" suffix may unexpectedly fallback to the insecure "git://" protocol if the module is unavailable via the secure "https://" and "git+ssh://" protocols, even if GOINSECURE is not set for said module. This only affects users who are not using the module proxy and are fetching modules directly (i.e. GOPROXY=off).

Affected products

• Golang Go: before 1.20.12 (fixed in 1.20.12); from 1.21.0-0, before 1.21.5 (fixed in 1.21.5)

Published 2023-12-06. Last modified 2026-06-17.