{"id":"CVE-2026-40970","details":"When configured to use an SSL bundle, Spring Boot's Elasticsearch auto-configuration does not perform hostname verification when connecting to the Elasticsearch server.\n\nAffected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.","aliases":["GHSA-c96x-rpm4-349p"],"modified":"2026-07-08T08:13:12.906057430Z","published":"2026-04-27T19:09:58.835Z","database_specific":{"cwe_ids":["CWE-295"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40970.json","unresolved_ranges":[{"extracted_events":[{"introduced":"4.0.0"},{"fixed":"4.0.6"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"vmware"},"references":[{"type":"WEB","url":"https://spring.io/security/cve-2026-40970"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40970.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40970"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/spring-projects/spring-boot","events":[{"introduced":"1c0e08b4c434b0e77a83098267b2a0f5a3fc56d7"},{"fixed":"8821ad2cd381bb4b9615a61479e1de7305a8ba39"}],"database_specific":{"extracted_events":[{"introduced":"4.0.0"},{"fixed":"4.0.6"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40970.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"}]}