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THREAT OPS › Threat News › [NVD] CVE-2026-40992 (MEDIUM 5.0) — 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 t

[NVD] CVE-2026-40992 (MEDIUM 5.0) — 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 t

lownvdPublished 2026-06-11

CVE-2026-40992 CVSS: 5.0 MEDIUM Published: 2026-06-11T07:16:27.177

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.

Indicators of compromise

CVE-2026-40992cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-40992