Tech article
Cloudflare fixes Containers cross-tenant flaw exposing customer data - BleepingComputer
Publisher description: Cloudflare has fixed a vulnerability in Containers and Sandboxes that allowed customers with a Workers Paid account to recover residual data from other customers' containers on the same physical host.
NewsAPI | Sep 27, 2026 | Bill Toulas
Automated excerpt
Cloudflare has fixed a vulnerability in Containers and Sandboxes that allowed customers with a Workers Paid account to recover residual data from other customers’ containers on the same physical host. Cloudflare Containers is a service available on the Workers Paid plan that lets developers run containerized applications on Cloudflare’s infrastructure, alongside Cloudflare Workers. Exploiting it would let an attacker read other customers' files, including directory listings, SQLite databases, Chromium profiles, . env files, and credential files.
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