Grok Build Left 35,000+ User Apps Exposed, Including Medical Records and SpaceX Sales Plans

Promptmethus · x · 2026-11-11

Security firm Claroc found that 35,000+ apps built on Grok Build were openly accessible, including internal apps from SpaceXSI. Exposed data reportedly includes 3,784 worker medical exams, a Tesla technician scorecard, a Navy contractor roster, and SpaceXSI's own sales plans. The flaw: each app's "secret" link token sits in the URL, which DNS logs record. Cursor claims apps are private by default, but Claroc's tests showed otherwise. SpaceXSI pulled its 24 apps only after Ars Technica asked; most other data remained exposed at publication.

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