Path Traversal in Telerik UI for Blazor Demo's Chat AI Integration Example

published 2026-11-13 yesterday modified 2026-11-13 yesterday also EUVD-2026-125354

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits: 0; none known

In Progress® Telerik® UI for Blazor versions v11.1.0 through v14.0.0, the demo application's Chat AI Integration example contains a relative path traversal vulnerability that could allow an attacker to read files outside of the chat attachments folder that are within the server's filesystem scope.

Patch / fix

fixed in 1

Progress Software Telerik UI for Blazor 14.1.0

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Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-14).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Progress Software Telerik UI for Blazor

Classification

Weakness

CWE-23 Relative Path Traversal

References

telerik.com /blazor-ui/documentation/knowledge-base/kb-security-demo-path-traversal-cve-2026-118976
vendor-advisory

Sources

CVE List CVE-2026-118976
NVD CVE-2026-118976

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