CVE-2021-43998: Hashicorp Vault

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

HashiCorp Vault and Vault Enterprise 0.11.0 up to 1.7.5 and 1.8.4 templated ACL policies would always match the first-created entity alias if multiple entity aliases exist for a specified entity and mount combination, potentially resulting in incorrect policy enforcement. Fixed in Vault and Vault Enterprise 1.7.6, 1.8.5, and 1.9.0.

Affected products

• Hashicorp Vault: from 0.11.0, up to and including 1.7.5; version 1.8.4 only

Published 2021-11-30. Last modified 2026-06-17.