Sensitive Information Exposure in HashiCorp Vault Key/Value Plugin
CVE-2025-4166

4.5MEDIUM

Key Information:

Vendor

Hashicorp
Status
Vault
Vault Enterprise
Vendor
CVE Published:
2 May 2025

What is CVE-2025-4166?

The Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may inadvertently reveal sensitive information in server and audit logs when handling malformed payloads during secret creation or updates via the Vault REST API. This can lead to unintended access to confidential data, emphasizing the need for secure input validation and error handling mechanisms.

Affected Version(s)

Vault 64 bit 0.3.0 < 1.19.2

Vault Enterprise 64 bit 0.10.0 < 1.19.2

References

https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-e...

CVSS V3.1

Score:
4.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.