{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-87670","assignerOrgId":"87b297d7-335e-4844-9551-11b97995a791","state":"PUBLISHED","assignerShortName":"brocade","dateReserved":"2026-09-08T22:51:12.166Z","datePublished":"2026-10-08T02:51:42.116Z","dateUpdated":"2026-10-08T02:51:42.116Z"},"containers":{"cna":{"providerMetadata":{"orgId":"87b297d7-335e-4844-9551-11b97995a791","shortName":"brocade","dateUpdated":"2026-10-08T02:51:42.116Z"},"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-290","description":"CWE-290: Authentication Bypass by Spoofing","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-151","descriptions":[{"lang":"en","value":"CAPEC-151 Identity Spoofing"}]}],"affected":[{"vendor":"Brocade","product":"Fabric OS","versions":[{"status":"affected","version":"0","lessThan":"10.0.1","versionType":"Brocade FabricOS"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"An authorization logic vulnerability exists in the Brocade Fabric OS versions before 10.0.1 REST API gateway. The internal gate guarding restricted management endpoints relies exclusively on client-controlled HTTP headers. An authenticated user with any valid REST session can spoof these headers to gain unauthorized access to internal management endpoints. This allows low-privilege users to view sensitive chassis metadata, hardware memory patrolling state, and firmware integrity audit logs.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An authorization logic vulnerability exists in the Brocade Fabric OS versions before 10.0.1 REST API gateway. The internal gate guarding restricted management endpoints relies exclusively on client-controlled HTTP headers. An authenticated user with any valid REST session can spoof these headers to gain unauthorized access to internal management endpoints. This allows low-privilege users to view sensitive chassis metadata, hardware memory patrolling state, and firmware integrity audit logs.</p>"}]}],"references":[{"url":"https://support.broadcom.com/external/content/SecurityAdvisories/0/39140"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.1,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}}],"solutions":[{"lang":"en","value":"Security update is provided in Brocade Fabric OS 10.0.1","supportingMedia":[{"type":"text/html","base64":false,"value":"<div>Security update is provided in Brocade Fabric OS 10.0.1</div><div></div>"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}