Symfony Security-Guard vulnerabilities

CVE-2021-21424 [MEDIUM] CWE-200 Prevent user enumeration using Guard or the new Authenticator-based Security Prevent user enumeration using Guard or the new Authenticator-based Security Description The ability to enumerate users was possible without relevant permissions due to different exception messages depending on whether the user existed or not. It was also possible to enumerate users by using a timing attack, by comparing time elapsed when authenticating an existing user and authenticati