Progress SoftwareCVE-2026-13184

Progress Software Telerik UI for ASP.NET AJAX: hard-coded key

CVE-2026-13184 · Published Jul 22, 2026 · updated Aug 6, 2026

High7.5

Fix: upgrade to 2026.2.708 or later

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.

Affected versions

Package	Affected	Fixed in
Telerik UI for ASP.NET AJAX Product	>= 2010.1.309, < 2026.2.708	2026.2.708

Details and references

CVSS 3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity from: the vendor (its own CVE record or advisory)
Weakness: CWE-321

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