CVE-2026-2878

MEDIUM

Progress Telerik UI for AJAX <2026.1.225 - Info Disclosure

Title source: llm

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.

References (1)

[Various Sources] https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-insufficient-entropy-cve-2026-2878

Scores

CVSS v3 5.3

EPSS 0.0001

EPSS Percentile 1.4%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-331

Status published

Products (1)

progress/telerik_ui_for_asp.net_ajax < 2026.1.225

Published Feb 25, 2026

Tracked Since Feb 25, 2026