Cannot build from source with 1.26rc2

[clin1234]

nuclei.exe: can't install github.com/projectdiscovery/nuclei/v3/cmd/nuclei:
# github.com/bytedance/sonic/internal/rt
go\pkg\mod\github.com\bytedance\[email protected]\internal\rt\stubs.go:33:22: undefined: GoMapIterator
go\pkg\mod\github.com\bytedance\[email protected]\internal\rt\stubs.go:36:54: undefined: GoMapIterator

[bad-antics]

This is a compatibility issue with Go 1.26rc2 and the bytedance/sonic JSON library. The GoMapIterator type was changed in Go 1.26.

Solutions:

1. Use stable Go 1.25.x instead:

go install golang.org/dl/go1.25.5@latest
go1.25.5 download
go1.25.5 install github.com/projectdiscovery/nuclei/v3/cmd/nuclei@latest

2. Build with CGO disabled (avoids sonic):

CGO_ENABLED=0 go install github.com/projectdiscovery/nuclei/v3/cmd/nuclei@latest

3. Wait for sonic update - the bytedance/sonic library needs to be updated for Go 1.26 compatibility. This is a known issue with pre-release Go versions.

For now, stick with Go 1.25.x for building nuclei until the dependencies are updated for Go 1.26.