5

CVE-2026-40992

Mail Auto-Configuration Does Not Enable SSL Hostname Verification

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.

Affected versions:
Spring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
VMware ≫ Spring Boot Version >= 3.4.0 < 3.4.17
VMware ≫ Spring Boot Version >= 3.5.0 < 3.5.14.1
VMware ≫ Spring Boot Version >= 4.0.0 < 4.0.6.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.024
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
VMware 5 1.6 3.4
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE-295 Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

https://spring.io/security/cve-2026-40992
Vendor Advisory