Vulnerability Details CVE-2026-40971
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 19.5%
CVSS Severity
CVSS v3 Score 5.0
References
Products affected by CVE-2026-40971
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cpe:2.3:a:vmware:spring_boot:3.5.0
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cpe:2.3:a:vmware:spring_boot:3.5.1
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cpe:2.3:a:vmware:spring_boot:3.5.10
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cpe:2.3:a:vmware:spring_boot:3.5.11
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cpe:2.3:a:vmware:spring_boot:3.5.12
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cpe:2.3:a:vmware:spring_boot:3.5.13
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cpe:2.3:a:vmware:spring_boot:3.5.2
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cpe:2.3:a:vmware:spring_boot:3.5.3
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cpe:2.3:a:vmware:spring_boot:3.5.4
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cpe:2.3:a:vmware:spring_boot:3.5.5
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cpe:2.3:a:vmware:spring_boot:3.5.6
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cpe:2.3:a:vmware:spring_boot:3.5.7
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cpe:2.3:a:vmware:spring_boot:3.5.8
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cpe:2.3:a:vmware:spring_boot:3.5.9
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cpe:2.3:a:vmware:spring_boot:4.0.0
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cpe:2.3:a:vmware:spring_boot:4.0.1
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cpe:2.3:a:vmware:spring_boot:4.0.2
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cpe:2.3:a:vmware:spring_boot:4.0.3
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cpe:2.3:a:vmware:spring_boot:4.0.4
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cpe:2.3:a:vmware:spring_boot:4.0.5