{ "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": "
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.
" } ] } ], "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" } } ] } }