Is CVE-2026-13184 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-13184?

CVE-2026-13184 has a CVSS v3 severity of HIGH (7.5).

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CVE-2026-13184

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.