Description

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.

INFO

Published Date :

2025-05-02T14:57:58.710Z

Last Modified :

2025-05-08T13:01:48.440Z

Source :

HashiCorp
AFFECTED PRODUCTS

The following products are affected by CVE-2025-4166 vulnerability.

Vendors Products
Hashicorp
  • Vault
  • Vault Enterprise
Openbao
  • Openbao
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-4166.

URL Resource
https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-4166 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-4166 cve-icon
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CVSS Vulnerability Scoring System

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