{"id":"CVE-2026-40992","aliases":["CLSA-2026-1789414950","CLSA-2026-1793299405","CLSA-2026-1793801974","CLSA-2026-1794258859","EUVD-2026-36203","GHSA-9wxp-w4px-32vh","ROOT-APP-MAVEN-CVE-2026-40992"],"status":"published","title":"Mail Auto-Configuration Does Not Enable SSL Hostname Verification","description":"Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.\n\nAffected versions:\nSpring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.","severity":{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00124,"percentile":0.02115,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2026-06-11T05:03:53Z","modified":"2026-11-10T01:15:03Z","fixes":[{"ecosystem":"Maven","package":"org.springframework.boot:spring-boot-starter-mail","fixed_in":["4.0.7","3.5.15"],"sources":["ghsa","osv"]},{"ecosystem":"Root:Maven","package":"io.root.org.springframework.boot:spring-boot-autoconfigure","fixed_in":["3.5.3-root.io.3","4.0.6-root.io.1"],"sources":["osv"]},{"ecosystem":"Root:Maven","package":"org.springframework.boot:spring-boot-autoconfigure","fixed_in":["3.5.3-aikido.3","4.0.6-aikido.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"last_affected":"4.0.6"},{"fixed":"4.0.7"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.0"},{"last_affected":"3.5.14"},{"fixed":"3.5.15"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.0"},{"last_affected":"3.4.16"}]}]},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.13"},{"fixed":"3.4.13-tuxcare.3"}]}],"versions":["3.4.13","3.4.13-tuxcare.1","3.4.13-tuxcare.2"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-autoconfigure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.13"},{"fixed":"3.4.13-tuxcare.3"}]}],"versions":["3.4.13","3.4.13-tuxcare.1","3.4.13-tuxcare.2"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.13"},{"fixed":"3.4.13-tuxcare.3"}]}],"versions":["3.4.13","3.4.13-tuxcare.1","3.4.13-tuxcare.2"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.9"},{"fixed":"2.7.9-tuxcare.1"}]}],"versions":["2.7.9"],"bundled":8},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-actuator","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.9"},{"fixed":"2.7.9-tuxcare.1"}]}],"versions":["2.7.9"],"bundled":8},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-actuator-autoconfigure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.9"},{"fixed":"2.7.9-tuxcare.1"}]}],"versions":["2.7.9"],"bundled":8},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-autoconfigure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.9"},{"fixed":"2.7.9-tuxcare.1"}]}],"versions":["2.7.9"],"bundled":8},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-devtools","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.9"},{"fixed":"2.7.9-tuxcare.1"}]}],"versions":["2.7.9"],"bundled":8},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-starter-actuator","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.9"},{"fixed":"2.7.9-tuxcare.1"}]}],"versions":["2.7.9"],"bundled":8},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.9"},{"fixed":"2.7.9-tuxcare.1"}]}],"versions":["2.7.9"],"bundled":8},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.8"},{"fixed":"2.7.8-tuxcare.2"}]}],"versions":["2.7.8","2.7.8-tuxcare.1"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-autoconfigure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.8"},{"fixed":"2.7.8-tuxcare.2"}]}],"versions":["2.7.8","2.7.8-tuxcare.1"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.8"},{"fixed":"2.7.8-tuxcare.2"}]}],"versions":["2.7.8","2.7.8-tuxcare.1"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.6"},{"fixed":"3.0.6-tuxcare.1"}]}],"versions":["3.0.6"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-actuator","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.6"},{"fixed":"3.0.6-tuxcare.1"}]}],"versions":["3.0.6"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-actuator-autoconfigure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.6"},{"fixed":"3.0.6-tuxcare.1"}]}],"versions":["3.0.6"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-autoconfigure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.6"},{"fixed":"3.0.6-tuxcare.1"}]}],"versions":["3.0.6"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-loader","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.6"},{"fixed":"3.0.6-tuxcare.1"}]}],"versions":["3.0.6"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-starter-actuator","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.6"},{"fixed":"3.0.6-tuxcare.1"}]}],"versions":["3.0.6"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.6"},{"fixed":"3.0.6-tuxcare.1"}]}],"versions":["3.0.6"],"bundled":7},{"source":"osv","ecosystem":"Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.0.7"}]}],"versions":["4.0.0","4.0.1","4.0.2","4.0.3","4.0.4","4.0.5","4.0.6"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.0"},{"fixed":"3.5.15"}]}],"versions":["3.5.0","3.5.1","3.5.10","3.5.11","3.5.12","3.5.13","3.5.14","3.5.2","3.5.3","3.5.4","3.5.5","3.5.6","3.5.7","3.5.8","3.5.9"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.boot:spring-boot-starter-mail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.0"},{"last_affected":"3.4.16"}]}],"versions":["3.4.0","3.4.1","3.4.10","3.4.11","3.4.12","3.4.13","3.4.2","3.4.3","3.4.4","3.4.5","3.4.6","3.4.7","3.4.8","3.4.9"]},{"source":"osv","ecosystem":"Root:Maven","package":"io.root.org.springframework.boot:spring-boot-autoconfigure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.3-root.io.3"},{"fixed":"4.0.6-root.io.1"}]}]},{"source":"osv","ecosystem":"Root:Maven","package":"org.springframework.boot:spring-boot-autoconfigure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.3-aikido.3"},{"fixed":"4.0.6-aikido.1"}]}]}],"products":[{"vendor":"spring","product":"spring boot"},{"vendor":"vmware","product":"spring_boot"}],"references":[{"url":"https://spring.io/security/cve-2026-40992","tags":["Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40992","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-9wxp-w4px-32vh"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40992.json","tags":["advisory"]},{"url":"https://github.com/spring-projects/spring-boot","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-40992","title":"Mail Auto-Configuration Does Not Enable SSL Hostname Verification","description":"Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.\n\nAffected versions:\nSpring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.","status":"published","published":"2026-06-11T05:03:53.539Z","modified":"2026-06-23T19:46:36.493Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T13:43:11.445168Z"}],"euvd":[{"id":"EUVD-2026-36203","description":"Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.\n\nAffected versions:\nSpring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.","status":"published","published":"2026-06-11T05:03:53Z","modified":"2026-06-23T19:46:36Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T18:20:31.51905Z"}],"ghsa":[{"id":"GHSA-9wxp-w4px-32vh","title":"Spring Boot's Mail Auto-Configuration Does Not Enable SSL Hostname Verification","description":"Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.\n\nAffected versions:\nSpring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.","status":"published","published":"2026-06-11T09:31:55Z","modified":"2026-08-18T20:13:40Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:41:03.602876Z"}],"nvd":[{"id":"CVE-2026-40992","description":"Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.\n\nAffected versions:\nSpring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.","status":"published","published":"2026-06-11T07:16:27.177Z","modified":"2026-09-04T18:05:38.58Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:12:23.485267Z"}],"osv":[{"id":"CVE-2026-40992","title":"Mail Auto-Configuration Does Not Enable SSL Hostname Verification","description":"Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.\n\nAffected versions:\nSpring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.","status":"published","published":"2026-06-11T05:03:53.539Z","modified":"2026-10-28T02:30:59.317760934Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:45:03.424067Z"},{"id":"GHSA-9wxp-w4px-32vh","title":"Spring Boot's Mail Auto-Configuration Does Not Enable SSL Hostname Verification","description":"Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.\n\nAffected versions:\nSpring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.","status":"published","published":"2026-06-11T09:31:55Z","modified":"2026-08-18T20:41:04.939461Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:46:44.225359Z"},{"id":"CLSA-2026-1789414950","title":"TuxCare security update for org.springframework.boot (3 CVEs)","description":"TuxCare rebuilt 3 org.springframework.boot packages to address 3 CVEs. Fixed in 3.4.13-tuxcare.3.","status":"published","published":"2026-09-14T19:42:30Z","modified":"2026-11-02T19:46:16.081882964Z","updated_at":"2026-11-02T20:29:33.792105Z"},{"id":"CLSA-2026-1793299405","title":"TuxCare security update for org.springframework.boot (8 CVEs)","description":"TuxCare rebuilt 7 org.springframework.boot packages to address 8 CVEs. Fixed in 2.7.9-tuxcare.1.","status":"published","published":"2026-10-29T19:43:26Z","modified":"2026-11-02T19:46:33.0199076Z","updated_at":"2026-11-02T20:28:42.34712Z"},{"id":"CLSA-2026-1793801974","title":"TuxCare security update for org.springframework.boot (2 CVEs)","description":"TuxCare rebuilt 3 org.springframework.boot packages to address 2 CVEs. Fixed in 2.7.8-tuxcare.2.","status":"published","published":"2026-11-04T15:19:35Z","modified":"2026-11-04T19:00:38.091695649Z","updated_at":"2026-11-04T19:15:03.6858Z"},{"id":"CLSA-2026-1794258859","title":"TuxCare security update for org.springframework.boot (7 CVEs)","description":"TuxCare rebuilt 7 org.springframework.boot packages to address 7 CVEs. Fixed in 3.0.6-tuxcare.1.","status":"published","published":"2026-11-09T22:14:20Z","modified":"2026-11-10T01:15:03.458851152Z","updated_at":"2026-11-10T01:43:20.132342Z"},{"id":"ROOT-APP-MAVEN-CVE-2026-40992","title":"CVE-2026-40992 in io.root.org.springframework.boot:spring-boot-autoconfigure - Patched by Root","description":"Root has patched CVE-2026-40992 in the io.root.org.springframework.boot:spring-boot-autoconfigure package for Root:Maven. Multiple fixed versions available.","status":"published","published":"2026-07-02T12:30:01Z","modified":"2026-07-02T14:30:40.5498826Z","updated_at":"2026-11-02T15:53:27.066589Z"}]}}