CVE-2025-6037
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-01

Last updated on: 2025-08-13

Assigner: HashiCorp Inc.

Description
Vault and Vault Enterprise (β€œVault”) 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.
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Meta Information
Published
2025-08-01
Last Modified
2025-08-13
Generated
2026-05-07
AI Q&A
2025-08-01
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
hashicorp vault to 1.16.23 (exc)
hashicorp vault to 1.20.1 (exc)
hashicorp vault From 1.17.0 (inc) to 1.18.12 (exc)
hashicorp vault From 1.19.0 (inc) to 1.19.7 (exc)
hashicorp vault 1.20.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-295 The product does not validate, or incorrectly validates, a certificate.
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability occurs in Vault's TLS certificate authentication method when it is configured with a non-CA (Certificate Authority) certificate as a trusted certificate. In this scenario, Vault does not correctly validate client certificates, which allows an attacker to craft a malicious certificate that could impersonate another user.


How can this vulnerability impact me? :

The vulnerability can allow an attacker to impersonate another user by using a maliciously crafted certificate. This could lead to unauthorized access, data breaches, and potentially full compromise of the Vault system, affecting confidentiality, integrity, and availability of sensitive information.


What immediate steps should I take to mitigate this vulnerability?

To mitigate this vulnerability, upgrade Vault to one of the fixed versions: Vault Community Edition 1.20.1 or Vault Enterprise versions 1.20.1, 1.19.7, 1.18.12, or 1.16.23. Additionally, review your TLS certificate auth method configuration to ensure it does not use a non-CA certificate as a trusted certificate.


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