{"id":"CVE-2021-27400","details":"HashiCorp Vault and Vault Enterprise Cassandra integrations (storage backend and database secrets engine plugin) did not validate TLS certificates when connecting to Cassandra clusters. Fixed in 1.6.4 and 1.7.1","aliases":["BIT-vault-2021-27400"],"modified":"2026-07-09T00:13:19.484411Z","published":"2021-04-22T17:15:07.723Z","references":[{"type":"ADVISORY","url":"https://discuss.hashicorp.com/t/hcsec-2021-10-vault-s-cassandra-integrations-did-not-validate-tls-certificates/23463"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hashicorp/vault","events":[{"introduced":"0"},{"fixed":"a10df31ee51d18d8dc4a3eda8b6ffd9097b21ba5"},{"introduced":"4e222b85c40a810b74400ee3c54449479e32bb9f"},{"fixed":"917142287996a005cb1ed9d96d00d06a0590e44e"}],"database_specific":{"cpe":["cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*","cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*"],"extracted_events":[{"introduced":"0"},{"fixed":"1.6.4"},{"introduced":"1.7.0"},{"fixed":"1.7.1"}],"source":"CPE_RANGE"}}],"versions":["sdk/v0.2.0","api/v1.1.0","v1.7.0","v1.6.3","v1.6.2","v1.6.1","v1.6.0","v1.6.0-rc","v1.2.0","v1.2.0-rc1","api/v1.0.4","sdk/v0.1.13","api/v1.0.3","sdk/v0.1.12","v1.2.0-beta2","v1.2.0-beta1","sdk/v0.1.11","sdk/v0.1.10","api/v1.0.2","v1.1.1","sdk/v0.1.9","api/v1.0.1","sdk/v0.1.8","v1.1.0","v1.1.0-beta2","v1.1.0-beta1","v1.0.3","v1.0.2","v1.0.1","v0.10.2","v1.0.0","v1.0.0-rc1","v1.0.0-beta2","v1.0.0-beta1","v0.11.2","v0.11.1","v0.11.0","v0.11.0-beta1","v0.10.4","v0.10.3","v0.10.1","v0.10.0","v0.10.0-rc1","v0.9.6","v0.9.5","v0.9.4","v0.9.2","v0.9.1","v0.9.0","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.8.0-rc1","v0.8.0-beta1","v0.7.3","v0.7.2","v0.7.1","v0.6.5","v0.7.0","v0.7.0-beta1","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.1-rc3","v0.6.1-rc2","v0.6.1-rc1","v0.6.0-rebuild","v0.6.0","v0.6.0-rc1","v0.5.2","v0.6.0-beta2","v0.6.0-beta1","v0.5.1","v0.5.0","v0.5.0-rc2","v0.5.0-rc1.2","v0.5.0-rc1.1","v0.5.0-rc1","v0.4.0","v0.4.0-rc1","v0.3.1","v0.3.0","v0.3.0-rc","v0.2.0","v0.2.0.rc1","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27400.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}