Prototype Pollution in Progress® Telerik® KendoReact

published 2025-02-12 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-51009

cvss: 4.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits: 0; none known

In Progress® Telerik® KendoReact versions v3.5.0 through v9.4.0, an attacker can introduce or modify properties within the global prototype chain which can result in denial of service or command injection.

Patch / fix

fixed in 1

Progress Software Telerik KendoReact 9.4.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 20 mo ago (2025-02-12)

Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.1	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

Progress Software Telerik KendoReact

Classification

Weakness

CWE-1321 Improperly Controlled Modification of Object Prototype Attributes

References

telerik.com /kendo-react-ui/components/knowledge-base/kb-security-protoype-pollution-2024-12629
vendor-advisory

Sources

CVE List CVE-2024-12629
NVD CVE-2024-12629

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary