CVE-2026-106160 Progress Software CVE debrief

Who should care

Defenders responsible for applications using Progress Kendo UI for jQuery, especially those accepting user-supplied data, should assess exposure and verify the impact of prototype pollution on application behavior.

Why it matters

Defenders should prioritize verifying exposure in applications using Progress Kendo UI for jQuery, especially those accepting user-supplied data, and assess the impact of prototype pollution on application behavior.

• Potential modification of object prototype attributes by an attacker
• Influence on application behavior
• Potential compromise of application data confidentiality and integrity

Technical summary

The vulnerability exists in Progress Kendo UI for jQuery prior to version 2026.3.1015. An attacker can supply data accepted by an affected model to modify object prototype attributes, influencing application behavior and potentially compromising data confidentiality and integrity. The issue arises from Model.accept passing server-response keys to kendo.setter without proper safeguards against unsafe object paths. Defenders should prioritize verifying exposure in applications using Progress Kendo UI for jQuery, especially those accepting user-supplied data.

Defensive priority

Defenders should prioritize verifying exposure in applications using Progress Kendo UI for jQuery, especially those accepting user-supplied data, and assess the impact of prototype pollution on application behavior.

Recommended defensive actions

• Verify exposure in applications using Progress Kendo UI for jQuery, especially those accepting user-supplied data.
• Assess the impact of prototype pollution on application behavior and data.
• Apply the fixed version 2026.3.1015 or later.
• Monitor for potential exploitation attempts.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. A vendor advisory is also available. The CVE record was published on 2026-10-15T14:17:14.727Z and has not been modified since then. The earliest affected version has not been confirmed. The impact depends on how the application uses the modified objects, including in server-side JavaScript scenarios.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.