False positive using Nuclei OOB DNS?

[aphroph]

Hello,

Good day. Anyone has experience when testing OOB DNS with Nuclei? I hosted my own interactsh server and client. The target is vulnerable to OOB DNS using nuclei tool and configure my hosted interactsh server/client and it is working as I am receiving DNS [d3u70klndrldsdis0ql04xpfjo88h1hdg] Received DNS interaction from xxx.xxx.xx.xxx at 2025-10-25 14:38:12 / [external-service-interaction:word-1] [http] [info] http://xx.xxx.xxx.xx.

Using default Nuclei settings using interactsh server oast.com also works. However replicating it using curl or manual method it doesn't work. Is this false positive?

Thank you

[aphroph]

Just an additional information, it maybe nuclei is doing a dig / nslookup reason why interaction is showing up in my interactsh-client. Seems initiated by Nuclei attackers side but not the target as it is reproducible only using Nuclei.