{"id":"CVE-2025-37731","state":"PUBLISHED","title":"Elasticsearch Improper Authentication","description":"Improper Authentication in Elasticsearch PKI realm can lead to user impersonation via specially crafted client certificates. A malicious actor would need to have such a crafted client certificate signed by a legitimate, trusted Certificate Authority.","publishedAt":"2025-12-15T10:42:21.840Z","updatedAt":"2026-02-26T16:07:40.327Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"elastic"},"assigner":"elastic","products":["Elastic Elasticsearch"],"affected":[{"vendor":"Elastic","product":"Elasticsearch","defaultStatus":"unaffected","versions":[{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.17.29","versionType":"semver"},{"version":"8.0.0","status":"affected","lessThanOrEqual":"8.19.7","versionType":"semver"},{"version":"9.0.0","status":"affected","lessThanOrEqual":"9.1.7","versionType":"semver"},{"version":"9.2.0","status":"affected","lessThanOrEqual":"9.2.1","versionType":"semver"}]}],"references":["https://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-and-9-2-2-security-update-esa-2025-27/384063"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:09:03.054Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/37xxx/CVE-2025-37731.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37731","state":"PUBLISHED","datePublished":"2025-12-15T10:42:21.840Z","dateUpdated":"2026-02-26T16:07:40.327Z","assignerShortName":"elastic","assignerOrgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","dateReserved":"2025-04-16T03:24:04.511Z"},"containers":{"cna":{"title":"Elasticsearch Improper Authentication","descriptions":[{"lang":"en","value":"Improper Authentication in Elasticsearch PKI realm can lead to user impersonation via specially crafted client certificates. A malicious actor would need to have such a crafted client certificate signed by a legitimate, trusted Certificate Authority."}],"affected":[{"vendor":"Elastic","product":"Elasticsearch","defaultStatus":"unaffected","versions":[{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.17.29","versionType":"semver"},{"version":"8.0.0","status":"affected","lessThanOrEqual":"8.19.7","versionType":"semver"},{"version":"9.0.0","status":"affected","lessThanOrEqual":"9.1.7","versionType":"semver"},{"version":"9.2.0","status":"affected","lessThanOrEqual":"9.2.1","versionType":"semver"}]}],"references":[{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-and-9-2-2-security-update-esa-2025-27/384063"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":6.8,"confidentialityImpact":"HIGH","integrityImpact":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","privilegesRequired":"LOW","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"elastic","orgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","dateUpdated":"2025-12-15T10:42:21.840Z"},"impacts":[{"capecId":"CAPEC-115","descriptions":[{"lang":"en","value":"CAPEC-115 Authentication Bypass"}]}],"source":{"discovery":"Elastic"},"x_generator":{"engine":"Elastic CVE Publisher 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2025-37731","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-12-16T04:56:03.191864Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T16:07:40.327Z"}}]}}}