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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
HashiCorp / Vault	affected 0 before 1.20.1
HashiCorp / Vault Enterprise	affected 0 before 1.20.1

CWE

CWE-295

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.