GHSA-mgr8-fxxv-82mjMediumCVSS 6.3
Builder.io Gen2 SDKs through versions 5.2.11 and 0.25.13 contain a prototype pollution...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-92781
- https://github.com/BuilderIO/builder/issues/4824
- https://github.com/BuilderIO/builder
- https://github.com/BuilderIO/builder/blob/main/packages/sdks/src/functions/get-content/generate-content-url.ts
- https://github.com/BuilderIO/builder/blob/main/packages/sdks/src/helpers/flatten.ts#L60-L76
- https://www.vulncheck.com/advisories/builder-io-gen2-sdks-through-5.2.11-prototype-pollution-via-builder-userattributes
- https://github.com/advisories/GHSA-mgr8-fxxv-82mj