To receive fixes for security vulnerabilities it is required to always upgrade to the latest version of Poseidon. See https://github.com/openHPI/poseidon/tree/main for the latest version.

If you have found a vulnerability or you are uncertain whether what you have discovered is a vulnerability, please send an email to sebastian.serth@hpi.de (GPG Key).

If you have a patch for the issue please use git format-patch and attach it to the email. Please do not open an issue or pull request on GitHub as that may disclose sensitive details around the vulnerability.