How to run headless templates?

[xsser]

Describe the bug
I've followed your advice to add -tags headless -headless to my command.But ,look at this

why?
[FTL] Error, no templates were found.

Nuclei version
v2.3.8

[ehsandeep]

@xsser not sure which template you wanted to run? you don't need a headless flag or tag to run CVE-2021-40438, also CVE-2021-40438.yaml does not exist in your current directory, you can run it using the below cmd:

nuclei -target XX -t cves/2021/CVE-2021-40438.yaml

Also make sure you are running the latest version of the project, i.e v2.5.2

go install -v github.com/projectdiscovery/nuclei/v2/cmd/nuclei@latest