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Vulnerability Details :

CVE-2026-40992

Summary
Assigner-vmware
Assigner Org ID-dcf2e128-44bd-42ed-91e8-88f912c1401d
Published At-11 Jun, 2026 | 05:03
Updated At-11 Jun, 2026 | 12:45
Rejected At-
Credits

Mail Auto-Configuration Does Not Enable SSL Hostname Verification

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:vmware
Assigner Org ID:dcf2e128-44bd-42ed-91e8-88f912c1401d
Published At:11 Jun, 2026 | 05:03
Updated At:11 Jun, 2026 | 12:45
Rejected At:
▼CVE Numbering Authority (CNA)
Mail Auto-Configuration Does Not Enable SSL Hostname Verification

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.

Affected Products
Vendor
VMware (Broadcom Inc.)Spring
Product
Spring Boot
Default Status
unaffected
Versions
Affected
  • From 4.0.0 before 4.0.7 (custom)
  • From 3.5.0 before 3.5.15 (custom)
  • From 3.4.0 before 3.4.17 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-295CWE-295: Improper Certificate Validation
Type: CWE
CWE ID: CWE-295
Description: CWE-295: Improper Certificate Validation
Metrics
VersionBase scoreBase severityVector
3.15.0MEDIUM
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Version: 3.1
Base score: 5.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
N/AA network attacker in a man-in-the-middle position on the mail submission path can intercept or tamper with mail traffic because Spring Boot Mail auto-configuration does not enable SSL hostname verification.
CAPEC ID: N/A
Description: A network attacker in a man-in-the-middle position on the mail submission path can intercept or tamper with mail traffic because Spring Boot Mail auto-configuration does not enable SSL hostname verification.
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://spring.io/security/cve-2026-40992
N/A
Hyperlink: https://spring.io/security/cve-2026-40992
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@vmware.com
Published At:11 Jun, 2026 | 07:16
Updated At:11 Jun, 2026 | 15:21

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.0MEDIUM
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Type: Secondary
Version: 3.1
Base score: 5.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-295Secondarysecurity@vmware.com
CWE ID: CWE-295
Type: Secondary
Source: security@vmware.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://spring.io/security/cve-2026-40992security@vmware.com
N/A
Hyperlink: https://spring.io/security/cve-2026-40992
Source: security@vmware.com
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

4Records found
CVE-2026-40974
Matching Score-10
Assigner-VMware by Broadcom
ShareView Details
Matching Score-10
Assigner-VMware by Broadcom
CVSS Score-5||MEDIUM
EPSS-0.08% / 24.73%
||
7 Day CHG~0.00%
Published-27 Apr, 2026 | 23:31
Updated-14 May, 2026 | 16:00
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Spring Boot's Cassandra auto-configuration does not perform hostname verification when establishing an SSL connection to Cassandra. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); Cassandra SSL auto-configuration. Versions that are no longer supported are also affected per vendor advisory.

Action-Not Available
Vendor-VMware (Broadcom Inc.)
Product-spring_bootSpring Boot
CWE ID-CWE-295
Improper Certificate Validation
CVE-2026-40970
Matching Score-10
Assigner-VMware by Broadcom
ShareView Details
Matching Score-10
Assigner-VMware by Broadcom
CVSS Score-5||MEDIUM
EPSS-0.03% / 8.86%
||
7 Day CHG~0.00%
Published-27 Apr, 2026 | 19:09
Updated-14 May, 2026 | 16:09
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

When configured to use an SSL bundle, Spring Boot's Elasticsearch auto-configuration does not perform hostname verification when connecting to the Elasticsearch server. Affected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.

Action-Not Available
Vendor-VMware (Broadcom Inc.)
Product-spring_bootSpring Boot
CWE ID-CWE-295
Improper Certificate Validation
CVE-2026-40971
Matching Score-10
Assigner-VMware by Broadcom
ShareView Details
Matching Score-10
Assigner-VMware by Broadcom
CVSS Score-5||MEDIUM
EPSS-0.06% / 19.51%
||
7 Day CHG~0.00%
Published-27 Apr, 2026 | 22:45
Updated-14 May, 2026 | 16:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

When configured to use an SSL bundle, Spring Boot's RabbitMQ auto-configuration does not perform hostname verification when connecting to the RabbitMQ broker. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14) per vendor advisory.

Action-Not Available
Vendor-VMware (Broadcom Inc.)
Product-spring_bootSpring Boot
CWE ID-CWE-295
Improper Certificate Validation
CVE-2026-41714
Matching Score-6
Assigner-VMware by Broadcom
ShareView Details
Matching Score-6
Assigner-VMware by Broadcom
CVSS Score-4||MEDIUM
EPSS-0.02% / 3.91%
||
7 Day CHG~0.00%
Published-09 Jun, 2026 | 23:48
Updated-10 Jun, 2026 | 19:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
In Spring AMQP the RabbitConnectionFactoryBean.setUri("amqps://...") bypasses secure SSL setup, uses TrustEverythingTrustManager

Applications that configure their broker connection via RabbitConnectionFactoryBean.setUri("amqps://...") without also calling setUseSSL(true) get TLS encryption with no certificate validation and no hostname verification. Affected versions: Spring AMQP 4.0.0 through 4.0.3; 3.2.0 through 3.2.10; 3.1.0 through 3.1.15; 2.4.0 through 2.4.17.

Action-Not Available
Vendor-VMware (Broadcom Inc.)
Product-Spring AMQP
CWE ID-CWE-295
Improper Certificate Validation
Details not found