CVE-2026-2878

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published2/25/2026

Last Modified2/26/2026

Sourcenvd

Honeypot Sightings0

Affected Products

progress:telerik_ui_for_asp.net_ajax

Weaknesses (CWE)

CWE-331

References

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-insufficient-entropy-cve-2026-2878(security@progress.com)

IOC Correlations

No correlations recorded

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