vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-13183

RadAsyncUpload Upload Metadata Timing Oracle Vulnerability in Telerik UI for ASP.NET AJAX

HIGH
7.5
CVSS Score
Published: July 22, 2026 at 01:36 PM UTC
Updated: October 24, 2026 at 05:10 PM UTC
1 product affected across 1 vendorTelerik UI for ASP.NET AJAX

Using Telerik UI for ASP.NET AJAX by Progress Software?

Get instant alerts when new vulnerabilities affect Telerik UI for ASP.NET AJAX - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload upload metadata processing may leak cryptographic validity through measurable timing differences, enabling remote attackers to recover protected metadata values.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Telerik UI for ASP.NET AJAX· Progress
95%
2010.1309 ≤ v < 2026.2.7082010.1.309
Affected range stops below 2026.2.708, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryMitigation
Source: cverecord
https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rau-timing-oracle-CVE-2026-13183

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHProgressSoftware
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-208

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card