CVE-2026-92779— Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via Bindings
Quick assessment
Affected
BuilderIO @builder.io/sdk-react
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Builder.io Gen2 SDK 在 5.2.11 及 0.25.13 版本中，其 辅助函数存在原型污染（prototype pollution）漏洞。该函数在处理内容块绑定（content block bindings）时缺乏验证。攻击者可以构造包含 、 或 路径的绑定键，从而在渲染过程中污染 。这种污染会影响进程中后续创建的所有对象，包括其他租户的渲染结果。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 7
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| BuilderIO | @builder.io/sdk-angular | ≤ 0.25.13 |
affected |
| BuilderIO | @builder.io/sdk-qwik | ≤ 0.25.13 |
affected |
| BuilderIO | @builder.io/sdk-react | ≤ 5.2.11 |
affected |
| BuilderIO | @builder.io/sdk-react-nextjs | ≤ 0.25.13 |
affected |
| BuilderIO | @builder.io/sdk-solid | ≤ 5.2.11 |
affected |
| BuilderIO | @builder.io/sdk-svelte | ≤ 5.2.11 |
affected |
| BuilderIO | @builder.io/sdk-vue | ≤ 5.2.11 |
affected |
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I. Basic Information for CVE-2026-92779
Vulnerability Information
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Vulnerability Title
Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via Bindings
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| BuilderIO | @builder.io/sdk-react | 0 ~ 5.2.11 | - |
|
| BuilderIO | @builder.io/sdk-vue | 0 ~ 5.2.11 | - |
|
| BuilderIO | @builder.io/sdk-svelte | 0 ~ 5.2.11 | - |
|
| BuilderIO | @builder.io/sdk-solid | 0 ~ 5.2.11 | - |
|
| BuilderIO | @builder.io/sdk-qwik | 0 ~ 0.25.13 | - |
|
| BuilderIO | @builder.io/sdk-angular | 0 ~ 0.25.13 | - |
|
| BuilderIO | @builder.io/sdk-react-nextjs | 0 ~ 0.25.13 | - |
|
II. Public POCs for CVE-2026-92779
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-92779 (4)
IV. Related Vulnerabilities
Same vendor: BuilderIO
-
CVE-2026-92781
Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via -
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Cross-Site Request Forgery (CSRF) in builderio/qwik -
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Code Injection in builderio/qwik -
CVE-2023-0410
Cross-site Scripting (XSS) - Generic in builderio/qwik
Same weakness: CWE-1321
-
CVE-2026-93753
deepmerge through 4.3.1 Prototype Poisoning via mergeObject -
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Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via -
CVE-2026-69200
node-opcua: Prototype Pollution via internal `fieldsToJson() -
CVE-2026-55451
gettext-converter: Prototype pollution in js2i18next() via c -
CVE-2026-61534
Yayson: Prototype pollution in the Store/LegacyStore deseria
V. Comments for CVE-2026-92779
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