CVE-2025-6037

medium

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.

References

https://thehackernews.com/2025/08/cyberark-and-hashicorp-flaws-enable.html

https://github.com/advisories/GHSA-6c5r-4wfc-3mcx

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-23391

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

Details

Source: Mitre, NVD

Published: 2025-08-01

Updated: 2025-08-13

Named Vulnerability: Vault FaultNamed Vulnerability: GO-2025-3836Named Vulnerability: GHSA-6c5r-4wfc-3mcx

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 6.8

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

Severity: Medium

EPSS

EPSS: 0.00249