In Progress® Telerik® UI for AJAX prior to v2026.2.708, when Telerik.Upload.ConfigurationHashKey is absent and machineKey is not explicitly configured, upload metadata integrity protection may fall back to a predictable default key, enabling attackers to forge protected upload metadata and unlock further exploit chains.
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Wed, 22 Jul 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In Progress® Telerik® UI for AJAX prior to v2026.2.708, when Telerik.Upload.ConfigurationHashKey is absent and machineKey is not explicitly configured, upload metadata integrity protection may fall back to a predictable default key, enabling attackers to forge protected upload metadata and unlock further exploit chains. | |
| Title | RadAsyncUpload Default HMAC Key Fallback Vulnerability in Telerik UI for ASP.NET AJAX | |
| Weaknesses | CWE-321 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: ProgressSoftware
Published:
Updated: 2026-07-22T19:14:27.027Z
Reserved: 2026-06-24T13:46:38.790Z
Link: CVE-2026-13184
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