{"id":"CVE-2025-6037","state":"PUBLISHED","title":"Vault Certificate Auth Method Did Not Validate Common Name For Non-CA Certificates","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.","publishedAt":"2025-08-01T17:52:48.778Z","updatedAt":"2026-02-26T17:50:09.821Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","source":"HashiCorp"},"assigner":"HashiCorp","products":["HashiCorp Vault","HashiCorp Vault Enterprise"],"affected":[{"vendor":"HashiCorp","product":"Vault","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.20.1","versionType":"semver"}],"platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"repo":"https://github.com/hashicorp/vault"},{"vendor":"HashiCorp","product":"Vault Enterprise","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.20.1","changes":[{"at":"1.19.7","status":"unaffected"},{"at":"1.18.12","status":"unaffected"},{"at":"1.16.23","status":"unaffected"}],"versionType":"semver"}],"platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"repo":"https://github.com/hashicorp/vault"}],"references":["https://discuss.hashicorp.com/t/hcsec-2025-18-vault-certificate-auth-method-did-not-validate-common-name-for-non-ca-certificates/76037"],"weaknesses":["CWE-295"],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/6xxx/CVE-2025-6037.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-6037","state":"PUBLISHED","datePublished":"2025-08-01T17:52:48.778Z","dateUpdated":"2026-02-26T17:50:09.821Z","assignerShortName":"HashiCorp","assignerOrgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","dateReserved":"2025-06-12T18:21:50.999Z"},"containers":{"cna":{"title":"Vault Certificate Auth Method Did Not Validate Common Name For Non-CA Certificates","descriptions":[{"lang":"en","value":"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":[{"vendor":"HashiCorp","product":"Vault","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.20.1","versionType":"semver"}],"platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"repo":"https://github.com/hashicorp/vault"},{"vendor":"HashiCorp","product":"Vault Enterprise","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.20.1","changes":[{"at":"1.19.7","status":"unaffected"},{"at":"1.18.12","status":"unaffected"},{"at":"1.16.23","status":"unaffected"}],"versionType":"semver"}],"platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"repo":"https://github.com/hashicorp/vault"}],"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2025-18-vault-certificate-auth-method-did-not-validate-common-name-for-non-ca-certificates/76037"}],"metrics":[{"cvssV3_1":{"baseScore":6.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-295","description":"CWE-295: Improper Certificate Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"HashiCorp","orgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","dateUpdated":"2025-08-01T17:52:48.778Z"},"impacts":[{"capecId":"CAPEC-122","descriptions":[{"lang":"en","value":"CAPEC-122: Privilege Abuse"}]}],"source":{"advisory":"HCSEC-2025-18","discovery":"EXTERNAL"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2025-6037","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-08-02T03:55:53.917718Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T17:50:09.821Z"}}]}}}