{"action":"Upgrade org.springframework.boot:spring-boot-elasticsearch to 4.0.6 or later.","affected":[{"fixed":"4.0.6","introduced":"4.0.0"}],"component":"org.springframework.boot:spring-boot-elasticsearch","cve_ids":["CVE-2026-40970"],"ecosystem":"Maven","epss":0.00136,"exploited":false,"fixed_versions":["4.0.6"],"ghsa_id":"GHSA-c96x-rpm4-349p","id":"tcs_01M5N8S0EMJE51B68QF6V8Q1B0","modified_at":"2026-05-06T18:56:34.849063Z","published_at":"2026-04-27T21:31:02Z","references":["https://osv.dev/vulnerability/GHSA-c96x-rpm4-349p","https://nvd.nist.gov/vuln/detail/CVE-2026-40970","https://github.com/spring-projects/spring-boot","https://github.com/spring-projects/spring-boot/releases/tag/v4.0.6","https://spring.io/security/cve-2026-40970"],"severity":{"label":"medium","score":5},"sources":[{"source":"osv","source_id":"GHSA-c96x-rpm4-349p","url":"https://osv.dev/vulnerability/GHSA-c96x-rpm4-349p"}],"summary":"Spring Boot's Elasticsearch auto-configuration doesn't perform hostname verification when connecting to the Elasticsearch server."}