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VulnerabilityPublished

CVE-2026-106156: Progress Software Telerik UI for ASP.NET Core · Uncontrolled Resource Consumption

Affects Progress Software Telerik UI for ASP.NET CoreSource CVE Database V5

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Not known to be exploited · CVSS 8.6 High : upgrade to 2026.3.1015 soon.

Data as of 11 Nov 2026, 17:35 UTC

CVSS 3.1 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (ProgressSoftware)CVSS 3.18.6
Patch
Available – fixed in 2026.3.1015
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Upgrade Progress Software Telerik UI for ASP.NET Core to 2026.3.1015.

Affected software

ProductAffectedFixed in
Progress SoftwareTelerik UI for ASP.NET CoreAffected
  • >=2015.1.318 <2026.3.1015
Fixed in
  • 2026.3.1015

AI-suggested

Upgrade Telerik UI for ASP.NET Core to version 2026.3.1015 or later, where this vulnerability is fixed. Until the upgrade, ensure that aggregation endpoints are not exposed without authentication or proper access controls to prevent exploitation.

Description

CVE-2026-106156 is a high-severity vulnerability in Progress Software Telerik UI for ASP.NET Core versions 2015.1.318 through 2026.3.811. It involves uncontrolled resource consumption due to repeated server-side aggregation requests causing dynamic assemblies and load contexts to accumulate, leading to increased memory usage. An unauthenticated remote attacker can exploit this if an aggregation endpoint is exposed without authentication, potentially exhausting system resources and impacting application availability. The issue is fixed in version 2026.3.1015.

References

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