What is CVE-2026-106136?

CVE-2026-106136 is a medium-severity vulnerability in Progress Software Kendoreact, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-11-06.

How severe is CVE-2026-106136?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Progress Software Kendoreact

CVE-2026-106136

Cross-Site Scripting (XSS) in the Chat component (@progress/kendo-react-conversational-ui) in Progress Software KendoReact versions 0.6.0 through 16.1.0 allows a low-privileged attacker who can supply Chat messages to execute arbitrary JavaScript in the origin of the application via an unsafe URL in an openUrl quick action, which runs when a user clicks the action.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-11-06 · last modified 2026-11-06.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Progress Software Kendoreact

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.telerik.com/kendo-react-ui/components/knowledge-base/kb-security-chat-xss-c… (vendor-advisory)

Frequently asked questions

What is CVE-2026-106136?: CVE-2026-106136 is a medium-severity vulnerability in Progress Software Kendoreact, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-11-06.
How severe is CVE-2026-106136?: Medium severity. CVSS v3 base score is 5.4 out of 10.