CVE-2026-13189 Details
Description
In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of the language parameter in the spell check handler may allow an attacker to influence server-side file path resolution and trigger unintended server-side requests.
A path traversal vulnerability has been identified in Progress Telerik UI for AJAX versions prior to 2026.2.708. The issue arises from inadequate validation of the language parameter in the spell check handler, which may allow an attacker to manipulate server-side file path resolution and initiate unintended server-side requests.
Users are advised to upgrade to Progress Telerik UI for AJAX version 2026.2.708 or later. Instructions for upgrading can be found in the Telerik documentation. Licensed users can access the latest version through the Telerik Product Downloads page.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 22, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-spellchecker-dictionarylanguage-path-traversal-CVE-2026-13189 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-36 | Absolute Path Traversal | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| progress telerik ui for asp.net ajax | >= 2011.2712, < 2026.2.708 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 6, 2026 | Initial Analysis | [email protected] |
| Jul 22, 2026 | CVE Modified | CISA-ADP |
| Jul 22, 2026 | New CVE Received | [email protected] |