HashiCorp Vault and Vault Enterprise allowed for enumeration of Secrets Engine mount paths via unauthenticated HTTP requests. Fixed in 1.6.2 & 1.5.7. References: https://discuss.hashicorp.com/t/hcsec-2021-03-vault-api-endpoint-allowed-enumeration-of-secrets-engine-mount-paths-without-authentication/20336 https://security.gentoo.org/glsa/202207-01