{"id":"CVE-2026-87670","state":"PUBLISHED","title":"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 excl","description":"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.","publishedAt":"2026-10-08T02:51:42.116Z","updatedAt":"2026-10-08T13:15:50.338Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"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","source":"brocade"},"assigner":"brocade","products":["Brocade Fabric OS"],"affected":[{"vendor":"Brocade","product":"Fabric OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"10.0.1","versionType":"Brocade FabricOS"}]}],"references":["https://support.broadcom.com/external/content/SecurityAdvisories/0/39140"],"weaknesses":["CWE-290"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/87xxx/CVE-2026-87670.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-87670","state":"PUBLISHED","datePublished":"2026-10-08T02:51:42.116Z","dateUpdated":"2026-10-08T13:15:50.338Z","assignerShortName":"brocade","assignerOrgId":"87b297d7-335e-4844-9551-11b97995a791","dateReserved":"2026-09-08T22:51:12.166Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"Brocade","product":"Fabric OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"10.0.1","versionType":"Brocade FabricOS"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-290","lang":"en","description":"CWE-290: Authentication Bypass by Spoofing","type":"CWE"}]}],"providerMetadata":{"shortName":"brocade","orgId":"87b297d7-335e-4844-9551-11b97995a791","dateUpdated":"2026-10-08T02:51:42.116Z"},"impacts":[{"capecId":"CAPEC-151","descriptions":[{"lang":"en","value":"CAPEC-151 Identity Spoofing"}]}],"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"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-08T13:14:41.969804Z","id":"CVE-2026-87670","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-08T13:15:50.338Z"}}]}}}