CVE-2025-6037 MEDIUM

CVE-2025-6037: Vault Certificate Auth Method Did Not Validate Common Name For Non-CA Certificates

Vendor Hashicorp
Product Vault
Weakness CWE-295
Published August 1, 2025
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

6.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Vault and Vault Enterprise (“Vault”) TLS certificate auth method did not correctly validate client certificates when configured with a non-CA certificate as [+trusted certificate+|https://developer.hashicorp.com/vault/api-docs/auth/cert#certificate]. In this configuration, an attacker may be able to craft a malicious certificate that could be used to impersonate another user. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.

Key dates

02Disclosure timeline

August 1, 2025 CVE published
February 26, 2026 Record updated