High severity7.5NVD Advisory· Published Jul 22, 2026· Updated Aug 6, 2026

CVE-2026-13189

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Progress (organisation)/Telerik Ui For Asp.net Ajax2 versions
cpe:2.3:a:progress:telerik_ui_for_asp.net_ajax:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:progress:telerik_ui_for_asp.net_ajax:*:*:*:*:*:*:*:*range: >=2011.2712,<2026.2.708
- (no CPE)range: <2026.2.708

Patches

Vulnerability mechanics

References

www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-spellchecker-dictionarylanguage-path-traversal-CVE-2026-13189nvdVendor Advisory

News mentions

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