NVD Vulnerability Detail
Search Exploit, PoC
CVE-2026-40992
Summary

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.

Publication Date June 11, 2026, 4:16 p.m.
Registration Date June 12, 2026, 4:17 a.m.
Last Update June 12, 2026, 12:21 a.m.
CVSS3.1 : MEDIUM
スコア 5.0
Vector CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
攻撃元区分(AV) 隣接
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I)
可用性への影響(A)
Related information, measures and tools
Common Vulnerabilities List