CVE-2021-27400
HIGH
7.5
CVSS Score
Published: April 22, 2021 at 04:48 PM UTC
Updated: June 17, 2026 at 03:44 AM UTC
1 product affected across 1 vendorVault
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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
Description
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
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.6.41.7.0 ≤ v < 1.7.1
Affected range stops below 1.6.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.7.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://discuss.hashicorp.com/t/hcsec-2021-10-vault-s-cassandra-integrations-did-not-validate-tls-certificates/23463CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-295
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