What is CVE-2026-106127?

CVE-2026-106127 is a medium-severity vulnerability in Progress Software Kendoreact, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 4.1/10. Published 2026-11-06.

How severe is CVE-2026-106127?

Medium severity. CVSS v3 base score is 4.1 out of 10.

Prototype Pollution in Progress Software Kendoreact

CVE-2026-106127

Prototype Pollution in the setter utility (@progress/kendo-react-common) in Progress Software KendoReact versions 3.5.0 through 16.0.0 allows a high-privileged attacker who can control a field path passed to the utility, directly or through components such as the Form, Scheduler, and Gantt, to modify the prototype of built-in objects, resulting in a limited impact on confidentiality, integrity, and availability.

Vulnerability class: Prototype Pollution

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

CVSS v3 metric

CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L.

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-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

References

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

Frequently asked questions

What is CVE-2026-106127?: CVE-2026-106127 is a medium-severity vulnerability in Progress Software Kendoreact, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 4.1/10. Published 2026-11-06.
How severe is CVE-2026-106127?: Medium severity. CVSS v3 base score is 4.1 out of 10.