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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.

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.

OpenSSH 10.6 turns on hybrid post-quantum signatures and disables compression to cut side-channel risk

The release is more than routine maintenance. OpenSSH is changing cryptographic defaults, sacrificing some compression effectiveness for side-channel safety, and warning that AI-assisted security reports are pushing it toward a faster release cadence.

Omarchy turns $1.95M in pledged AI credits into an open-source development budget

The interesting part is not another sponsorship total. DHH says Omarchy Quattro is already being built heavily with coding agents, and the token pledges are intended for debugging, security work and a 1,600-plus pull-request backlog. The dollar values are foundation-reported pledged credits, not audited cash spend.