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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.

OpenAI’s Codex client exposes a GenUI layer for refreshable interfaces inside conversations

RuntimeWire found a generic `genui` message path, a server-directed widget refresh endpoint and 467 versioned Learning Block manifests inside OpenAI’s Codex desktop client. The material development is not another visualization feature: it is evidence of a reusable interface layer beneath conversational answers, with important limits around what is actually public or enabled.

Docker Desktop is replacing its third-party VM layer with Docker VMM

Docker VMM gives Docker direct control over Desktop’s hidden Linux-VM layer and is still targeted to become the default for new installs at GA. The August 24 Desktop 4.88 release is an important beta signal: it fixes a severe inbound-network-throughput regression and removes a 28 GiB Mac memory ceiling, reinforcing the need for workload-specific testing before standardisation.