CVE-2026-92779 Builder.io Gen2 SDKs - Prototype Pollution

Builder.io Gen2 SDKs through versions 5.2.11 and 0.25.13 contain a prototype pollution vulnerability caused by unvalidated processing of content block bindings in the deep-set helper function, letting attackers pollute Object.prototype during rendering, exploit requires crafted content blocks with specific binding keys.

CVSS base score 7.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.49% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Prototype Pollution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-1321

Vendor fix

Update to a version later than 5.2.11 and 0.25.13 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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