{"action":"Upgrade org.springframework.boot:spring-boot-starter-mail to 3.5.15 (3.x) or 4.0.7 (4.x) or later.","affected":[{"fixed":"4.0.7","introduced":"4.0.0"},{"fixed":"3.5.15","introduced":"3.5.0"},{"introduced":"3.4.0","last_affected":"3.4.16"}],"component":"org.springframework.boot:spring-boot-starter-mail","cve_ids":["CVE-2026-40992"],"ecosystem":"Maven","epss":0.00124,"exploited":false,"fixed_versions":["4.0.7","3.5.15"],"ghsa_id":"GHSA-9wxp-w4px-32vh","id":"tcs_01M5N8QZPSX2VB801QG5BB33J5","modified_at":"2026-08-18T20:41:04.939461Z","published_at":"2026-06-11T09:31:55Z","references":["https://osv.dev/vulnerability/GHSA-9wxp-w4px-32vh","https://nvd.nist.gov/vuln/detail/CVE-2026-40992","https://github.com/spring-projects/spring-boot","https://spring.io/security/cve-2026-40992"],"severity":{"label":"medium","score":5},"sources":[{"source":"osv","source_id":"GHSA-9wxp-w4px-32vh","url":"https://osv.dev/vulnerability/GHSA-9wxp-w4px-32vh"}],"summary":"Spring Boot's Mail Auto-Configuration Does Not Enable SSL Hostname Verification"}