Report privately through GitHub: open the repository's Security tab and choose Report a vulnerability. The report stays visible only to the maintainers until a fix ships.
Direct link: https://github.com/n24q02m/fastretrieval/security/advisories/new
Please do not open a public issue for a security vulnerability.
If the link above returns a 404, private vulnerability reporting is not enabled yet on this repository; open an issue asking for it to be turned on, without describing the vulnerability.