Vulnerability Monitor

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CVE-2025-6037

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.

Published

2025-08-01T18:15:57.300

Last Modified

2025-08-13T18:09:00.140

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

Weaknesses

Type: Secondary
CWE-295

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	hashicorp	vault	< 1.16.23	Yes
Application	hashicorp	vault	< 1.20.1	Yes
Application	hashicorp	vault	< 1.18.12	Yes
Application	hashicorp	vault	< 1.19.7	Yes
Application	hashicorp	vault	1.20.0	Yes

References

https://discuss.hashicorp.com/t/hcsec-2025-18-vault-certificate-auth-method-did-not-validate-common-name-for-non-ca-certificates/76037 Vendor Advisory ([email protected])