SecuriTricks - 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. 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.

Product(s) Impacted

Vendor	Product	Versions
Springproject	Spring Boot	4.0.0-4.0.6, 3.5.0-3.5.14, 3.4.0-3.4.16

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-295

Improper Certificate Validation

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

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	springproject	spring_boot	4.0.0-4.0.6	/	/	/	/	/	/	/
a	springproject	spring_boot	3.5.0-3.5.14	/	/	/	/	/	/	/
a	springproject	spring_boot	3.4.0-3.4.16	/	/	/	/	/	/	/

References

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

CVSS Score

5.0 / 10

CVSS Data - 3.1

Attack Vector: ADJACENT_NETWORK
Attack Complexity: HIGH
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: LOW

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

View Vector String

Timeline

Published: June 11, 2026, 7:16 a.m.
Last Modified: June 11, 2026, 7:16 a.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-40992