CVE-2026-92781: fallo de gravedad media en BuilderIO @builder.io/sdk-angular
Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via builder.userAttributes
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.3epss 0.4%
Builder.io Gen2 SDKs through versions 5.2.11 and 0.25.13 contain a prototype pollution vulnerability in the unflatten helper that processes builder.userAttributes query parameters without prototype guards. Attackers can craft preview links with __proto__ or prototype segments to pollute Object.prototype in a visitor's browser when the SDK processes the malicious URL.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Productos afectados
BuilderIO · @builder.io/sdk-angularBuilderIO · @builder.io/sdk-qwikBuilderIO · @builder.io/sdk-reactBuilderIO · @builder.io/sdk-react-nextjsBuilderIO · @builder.io/sdk-solidBuilderIO · @builder.io/sdk-svelteBuilderIO · @builder.io/sdk-vueCVEs relacionadas — BuilderIO @builder.io/sdk-angular
En el mismo producto, de las más peligrosas a las menos.
Referencias
https://github.com/BuilderIO/builderhttps://github.com/BuilderIO/builder/blob/main/packages/sdks/src/functions/get-content/generate-content-url.tshttps://github.com/BuilderIO/builder/blob/main/packages/sdks/src/helpers/flatten.ts#L60-L76https://github.com/BuilderIO/builder/issues/4824https://www.vulncheck.com/advisories/builder-io-gen2-sdks-through-5.2.11-prototype-pollution-via-builder-userattributes