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    CVE-2025-4166

    Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.

    Published:May 2, 2025
    Last Modified:Dec 31, 2025
    EPS:May 2, 2025
    EPSS Score:0.00017
    CVSS Score:4.5

    Affected Products

    Vendor
    Hashicorp
    Product
    Vault
    Vendor
    Hashicorp
    Product
    Vault Enterprise
    Vendor
    Openbao
    Product
    Openbao

    Exploits

    No exploit reference

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High