CVE-2021-41802: HCSEC-2021-27 - Vault Merging Multiple Entity Aliases for the Same Mount May Allow Privilege Escalation

HashiCorp Vault and Vault Enterprise through 1.7.4 and 1.8.3 allowed a user with write permission to an entity alias ID sharing a mount accessor with another user to acquire this other user’s policies by merging their identities. Fixed in Vault and Vault Enterprise 1.7.5 and 1.8.4.