What is CVE-2026-13186?

CVE-2026-13186 is a high-severity vulnerability in Progress Software Telerik Ui For Asp.net Ajax, classified under Path Traversal. CVSS score: 8.1/10. Published 2026-07-22.

How severe is CVE-2026-13186?

High severity. CVSS v3 base score is 8.1 out of 10.

Path Traversal in Progress Software Telerik Ui For Asp.net Ajax

CVE-2026-13186

In Progress® Telerik® UI for AJAX prior to v2026.2.708, a path traversal vulnerability in the file-based persistence storage provider can be exploited when the storage key is derived from user-controlled input, enabling attacker-controlled…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Progress Software Telerik Ui For Asp.net Ajax — versions 2013.1.220

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security@progress.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-13186?: CVE-2026-13186 is a high-severity vulnerability in Progress Software Telerik Ui For Asp.net Ajax, classified under Path Traversal. CVSS score: 8.1/10. Published 2026-07-22.
How severe is CVE-2026-13186?: High severity. CVSS v3 base score is 8.1 out of 10.