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Cloudflare Containers exposed previous tenants’ disk data through unzeroed blocks

This was not a Firecracker escape or access to a live victim disk. It was a storage-isolation failure underneath the sandbox: researchers recovered foreign directory structures, database pages and complete SQLite databases from reused blocks, and Cloudflare had to fix allocation plus retire existing disks and cached snapshots.

GitHub’s OAuth apps get short-lived tokens, multiple callbacks — and a wildcard setting worth auditing

GitHub OAuth apps can now use eight-hour access tokens with rotating refresh tokens, register up to 10 callback URLs, and explicitly control wildcard callback matching. New apps default to expiring tokens, while existing single-callback apps should review a legacy wildcard setting GitHub has now made visible.

Bun 1.4 rewrites the runtime in Rust and moves closer to Node.js 26 compatibility

Bun 1.4 combines an implementation-language rewrite with a larger built-in standard library and a substantial Node-compatibility push. For teams already running Bun, the practical task is to validate native addons, runtime behavior and workload-specific performance rather than treating this as a drop-in minor upgrade.