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.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6037.json",
"cna_assigner": "HashiCorp",
"cwe_ids": [
"CWE-295"
]
}{
"cpe": [
"cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*",
"cpe:2.3:a:hashicorp:vault:1.20.0:*:*:*:enterprise:*:*:*"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.20.1"
},
{
"introduced": "1.20.0"
},
{
"last_affected": "1.20.0"
}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}