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HIGH

CVE-2026-92779

Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via Bindings

CVSS v3

7.6

HIGH

EPSS Score

0.5 %

exploit probability, as of 2026-09-29

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2026-09-16
Last Modified
2026-09-17

Frequently asked questions

What is CVE-2026-92779?

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.

Is CVE-2026-92779 actively exploited?

Active exploitation of CVE-2026-92779 has not been confirmed. Its EPSS score was 0.5% on 2026-09-29, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-92779?

CVE-2026-92779 has a CVSS v3 base score of 7.6 (HIGH severity).

Is CVE-2026-92779 affecting your environment?

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