{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-40971", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-04-16T02:18:56.133Z", "datePublished": "2026-04-27T22:45:13.327Z", "dateUpdated": "2026-04-28T12:46:29.029Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-04-27T22:45:13.327Z" }, "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-295: Improper Certificate Validation", "type": "CWE", "cweId": "CWE-295" } ] } ], "impacts": [ { "descriptions": [ { "lang": "en", "value": "Per CVSS v3.1: Confidentiality LOW; Integrity LOW; Availability LOW." } ] } ], "affected": [ { "vendor": "Spring", "product": "Spring Boot", "versions": [ { "status": "affected", "version": "4.0.0", "lessThan": "4.0.6", "versionType": "custom" }, { "status": "affected", "version": "3.5.0", "lessThan": "3.5.14", "versionType": "custom" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "When configured to use an SSL bundle, Spring Boot's RabbitMQ auto-configuration does not perform hostname verification when connecting to the RabbitMQ broker.\n\nAffected: 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.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "
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.
" } ] } ], "references": [ { "url": "https://spring.io/security/cve-2026-40971" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW", "baseScore": 5, "baseSeverity": "MEDIUM" } } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.1" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-04-28T12:46:22.032309Z", "id": "CVE-2026-40971", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-28T12:46:29.029Z" } } ] } }