9.8
Critical
CVE-2023-29404 The go command may execute arbitrary code at build time when using cgo
Description
The go command may execute arbitrary code at build time when using cgo. This may occur when running "go get" on a malicious module, or when running any other command which builds untrusted code. This is can by triggered by linker flags, specified via a "#cgo LDFLAGS" directive. The arguments for a number of flags which are non-optional are incorrectly considered optional, allowing disallowed flags to be smuggled through the LDFLAGS sanitization. This affects usage of both the gc and gccgo compilers.
Affected products and versions
Other CVEs of cmd/go
The 23 CVEs of cmd/go →
CVE-2026-94444
Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/fips140 and operates a…
7.8
High
CVE-2026-94447
Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/toolchain go.sum entry and…
7.8
High
CVE-2026-56865
A malicious GOPROXY was previously capable of forging up to two sumdb tiles that allow for a requested module to…
8.4
High
CVE-2026-56864
A malicious GOSUMDB was capable of serving arbitrary module content not contained within the transparency log
7.5
High