{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71262","assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","state":"PUBLISHED","assignerShortName":"TuranSec","dateReserved":"2026-08-05T12:23:34.966Z","datePublished":"2026-08-05T12:26:10.549Z","dateUpdated":"2026-08-10T11:46:26.306Z"},"containers":{"cna":{"title":"IoTSharp BlobStorageController Missing Authentication and Path Traversal","descriptions":[{"lang":"en","value":"IoTSharp BlobStorageController.cs lacks the [Authorize] attribute applied to every other controller in the application (DevicesController, CustomersController, TenantsController, etc.), and no global authorization FallbackPolicy is configured in Startup.cs, leaving its Upload/Download/List/Modify/Delete endpoints reachable by unauthenticated remote attackers.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>IoTSharp BlobStorageController.cs lacks the [Authorize] attribute applied to every other controller in the application (DevicesController, CustomersController, TenantsController, etc.), and no global authorization FallbackPolicy is configured in Startup.cs, leaving its Upload/Download/List/Modify/Delete endpoints reachable by unauthenticated remote attackers.</p>"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-306","cweId":"CWE-306","type":"CWE"}]}],"affected":[{"vendor":"IoTSharp","product":"IoTSharp","programFiles":["IoTSharp/Controllers/BlobStorageController.cs"],"versions":[{"version":"0","lessThanOrEqual":"*","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}}],"references":[{"url":"https://github.com/IoTSharp/IoTSharp","tags":["third-party-advisory"]},{"url":"https://github.com/IoTSharp/IoTSharp/blob/master/IoTSharp/Controllers/BlobStorageController.cs","tags":["third-party-advisory"]}],"credits":[{"lang":"en","value":"Alibek Baxtiyorov","type":"finder"}],"providerMetadata":{"orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","shortName":"TuranSec","dateUpdated":"2026-08-10T11:46:26.306Z"},"source":{"discovery":"EXTERNAL"},"datePublic":"2026-08-05T12:26:10.549Z"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T15:38:35.326499Z","id":"CVE-2026-71262","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":"2026-08-05T15:38:42.279Z"}}]}}