In Progress® Telerik® UI for ASP.NET Core versions 2015.1.318 through 2026.3.811, repeated server-side aggregation
Source GCVE Database
Not known to be exploited · CVSS 8.6 High : upgrade to 2026.3.1015 soon.
Data as of 11 Nov 2026, 19:47 UTC
Thin evidence
One scorer or none| CNA (ProgressSoftware) | CVSS 3.1 | 8.6 |
|---|
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 Telerik UI for ASP.NET Core and telerik.ui.for.aspnetcore to 2026.3.1015.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Progress SoftwareTelerik UI for ASP.NET Core | Affected
| Fixed in
|
NuGettelerik.ui.for.aspnetcorepkg:nuget/telerik.ui.for.aspnetcoreOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to version 2026.3.1015 or later, where the issue is fixed. Until then, ensure that aggregation endpoints are not exposed without authentication to prevent exploitation.
Description
A memory exhaustion vulnerability exists in In Progress® Telerik® UI for ASP.NET Core versions 2015.1.318 through 2026.3.811. Repeated server-side aggregation requests cause dynamic assemblies and load contexts to accumulate, leading to increased process memory consumption. An unauthenticated remote attacker can exploit this if the aggregation endpoint is exposed without authentication, potentially causing denial of service due to resource exhaustion. The issue is fixed in version 2026.3.1015.