Security Advisory

CVE-2026-92781

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-16 20:32:38

Last updated 2026-09-16 20:32:38

Assigner VulnCheck

CVSS score 6.3

State PUBLISHED

Description

Builder.io Gen2 SDKs through versions 5.2.11 and 0.25.13 contain a prototype pollution vulnerability in the unflatten helper that processes builder.userAttributes query parameters without prototype guards. Attackers can craft preview links with __proto__ or prototype segments to pollute Object.prototype in a visitor's browser when the SDK processes the malicious URL.

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