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CVE-2026-92779

HIGHCVSS 7.6/10

Last modified

CVE-2026-92779 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. 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..

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.

Metrics

CVSS 3.1
7.6/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

CVSS 4.0
7.2/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
BuilderIO@builder.io/sdk-react<= 5.2.11
BuilderIO@builder.io/sdk-vue<= 5.2.11
BuilderIO@builder.io/sdk-svelte<= 5.2.11
BuilderIO@builder.io/sdk-solid<= 5.2.11
BuilderIO@builder.io/sdk-qwik<= 0.25.13
BuilderIO@builder.io/sdk-angular<= 0.25.13
BuilderIO@builder.io/sdk-react-nextjs<= 0.25.13

References

Timeline

Published
Last Modified
Status
Received

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.
How severe is CVE-2026-92779?
CVE-2026-92779 has a CVSS score of 7.6/10 (HIGH severity).
How do I fix CVE-2026-92779?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST