CVE-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.
Vulnerability Summary
CVSS v3 Score
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS Score (Exploitation Probability)
This vulnerability has a 0.12% probability of being exploited in the next 30 days, ranking higher than 2% of all scored CVEs.
CWE Classification
Related Vulnerabilities
Same Weakness Type(CWE-295)
Improper validation of SSH host keys in Canon EOS Network Setting Tool Version 1.5.0 or earlier
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Similar SeverityMEDIUM
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