HashiCorp Vault Enterprise 0.11.0 through 1.3.1 fails, in certain circumstances, to revoke dynamic secrets for a mount in a deleted namespace. Fixed in 1.3.2. https://github.com/hashicorp/vault/blob/master/CHANGELOG.md#132-january-22nd-2020 https://www.hashicorp.com/blog/category/vault/
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-7220