GHSA-CH68-7CF4-35VR Limited ability to spoof SAML authentication with missing audience verification in Fleet

Impact This impacts deployments using SAML SSO in two specific cases: 1. A malicious or compromised Service Provider SP could reuse the SAML response to log into Fleet as a user -- only if the user has an account with the same email in Fleet, and the user signs into the malicious SP via SAML SSO...