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Cloudflare Fixes Cross-Tenant Data Exposure in Containers

Image: InfoQ

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  • InfoQ · October 5, 2026 08:48
    Cloudflare has disclosed a cross-tenant data exposure vulnerability in Containers and Sandboxes, caused by thin-provisioned storage pools configured to skip zeroing reused blocks. Researchers recovered directory structures, database pages and complete SQLite databases across four continents.…