{ "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": "

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.

" } ] } ], "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": "
Security update is provided in Brocade Fabric OS 10.0.1
" } ] } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.5" } } } }