CVSS 3.1
5.0 mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:LCVE-2026-40992
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.
Severity
- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-31)
- CWE
- CWE-295
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vmware:spring_boot
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-9wxp-w4px-32vh | Maven | org.springframework.boot:spring-boot-starter-mail | >=4.0.0 <4.0.7 | 4.0.7 |
| GHSA-9wxp-w4px-32vh | Maven | org.springframework.boot:spring-boot-starter-mail | >=3.5.0 <3.5.15 | 3.5.15 |
| GHSA-9wxp-w4px-32vh | Maven | org.springframework.boot:spring-boot-starter-mail | >=3.4.0 <=3.4.16 | no fix published |