{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40976","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","state":"PUBLISHED","assignerShortName":"vmware","dateReserved":"2026-04-16T02:19:04.616Z","datePublished":"2026-04-27T23:34:51.422Z","dateUpdated":"2026-04-28T14:34:52.688Z"},"containers":{"cna":{"providerMetadata":{"orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","shortName":"vmware","dateUpdated":"2026-04-27T23:34:51.422Z"},"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-862: Missing Authorization","type":"CWE","cweId":"CWE-862"}]}],"impacts":[{"descriptions":[{"lang":"en","value":"Per CVSS v3.1: Confidentiality HIGH; Integrity HIGH; Availability NONE."}]}],"affected":[{"vendor":"Spring","product":"Spring Boot","modules":["spring-boot-actuator-autoconfigure"],"versions":[{"status":"affected","version":"4.0.0","lessThan":"4.0.6","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoints. For an application to be vulnerable, it must: be a servlet-based web application; have no Spring Security configuration of its own and rely on the default web security filter chain; depend on spring-boot-actuator-autoconfigure; not depend on spring-boot-health. If any of the above does not apply, the application is not vulnerable.\n\nAffected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoints. For an application to be vulnerable, it must:</p><ul><li>be a servlet-based web application</li><li>have no Spring Security configuration of its own and rely on the default web security filter chain</li><li>depend on <code>spring-boot-actuator-autoconfigure</code></li><li>not depend on <code>spring-boot-health</code></li></ul><p>If any of the above does not apply, the application is not vulnerable.</p><p>Affected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.</p>"}]}],"references":[{"url":"https://spring.io/security/cve-2026-40976"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-28T13:54:43.454470Z","id":"CVE-2026-40976","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-28T14:34:52.688Z"}}]}}