Medium severity5.3NVD Advisory· Published Feb 25, 2026· Updated Jun 17, 2026
CVE-2026-2878
CVE-2026-2878
Description
In Progress® Telerik® UI for AJAX, versions prior to 2026.1.225, an insufficient entropy vulnerability exists in RadAsyncUpload, where a predictable temporary identifier, based on timestamp and filename, can enable collisions and file content tampering.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:progress:telerik_ui_for_asp.net_ajax:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:progress:telerik_ui_for_asp.net_ajax:*:*:*:*:*:*:*:*range: <2026.1.225
- (no CPE)range: <2026.1.225
- Range: 2011.2.712
Patches
Vulnerability mechanics
References
1- www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-insufficient-entropy-cve-2026-2878nvdMitigationVendor Advisory
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