Builder.io Gen2 SDKs through versions 5.2.11 and 0.25.13 contain a prototype pollution vulnerability in the deep-set helper function that processes content block bindings without validation. Attackers can craft content blocks with binding keys containing __proto__, prototype, or constructor paths to pollute Object.prototype during rendering, affecting all subsequent objects created in the process including other tenants' renders.

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History

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Builderio
Builderio sdk-angular
Builderio sdk-qwik
Builderio sdk-react
Builderio sdk-react-nextjs
Builderio sdk-solid
Builderio sdk-svelte
Builderio sdk-vue
Vendors & Products Builderio
Builderio sdk-angular
Builderio sdk-qwik
Builderio sdk-react
Builderio sdk-react-nextjs
Builderio sdk-solid
Builderio sdk-svelte
Builderio sdk-vue

Thu, 17 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 16 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
Description Builder.io Gen2 SDKs through versions 5.2.11 and 0.25.13 contain a prototype pollution vulnerability in the deep-set helper function that processes content block bindings without validation. Attackers can craft content blocks with binding keys containing __proto__, prototype, or constructor paths to pollute Object.prototype during rendering, affecting all subsequent objects created in the process including other tenants' renders.
Title Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via Bindings
Weaknesses CWE-1321
References
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-17T19:25:04.694Z

Reserved: 2026-09-16T19:22:53.082Z

Link: CVE-2026-92779

cve-icon Vulnrichment

Updated: 2026-09-17T19:16:57.590Z

cve-icon NVD

Status : Received

Published: 2026-09-16T21:17:26.827

Modified: 2026-09-17T20:18:57.833

Link: CVE-2026-92779

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T20:03:25Z

Weaknesses