SecuriTricks - CVE-2025-6037

Description

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.

Product(s) Impacted

Vendor	Product	Versions
Hashicorp	Vault Vault Enterprise	1.20.1 1.20.1, 1.19.7, 1.18.12, 1.16.23

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-295

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	hashicorp	vault	1.20.1	/	/	/	/	/	/	/
a	hashicorp	vault_enterprise	1.20.1	/	/	/	/	/	/	/
a	hashicorp	vault_enterprise	1.19.7	/	/	/	/	/	/	/
a	hashicorp	vault_enterprise	1.18.12	/	/	/	/	/	/	/
a	hashicorp	vault_enterprise	1.16.23	/	/	/	/	/	/	/

References

https://discuss.hashicorp.com/t/hcsec-2025-18-vault-certificate-auth-method-did-not-validate-common-name-for-non-ca-certificates/76037

CVSS Score

6.8 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: HIGH
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH

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

View Vector String

Timeline

Published: Aug. 1, 2025, 6:15 p.m.
Last Modified: Aug. 1, 2025, 6:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@hashicorp.com

CVE-2025-6037