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.
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.
In context
- Topic: Cloud y Arquitectura — Nube pública, híbrida, costos y decisiones de infraestructura.
- Source: InfoQ
- Published: 05/10/2026
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Why it matters
After a few years, nearly every organisation that migrated discovers the same thing: the bill grows faster than the business. Not because the cloud is expensive, but because nobody switches off what is no longer used and nobody has the incentive to check.
What I look at in these announcements is portability. The more comfortable a platform is, the harder it usually is to leave, and that comfort gets paid for in negotiating power three years later, exactly when renewal comes up and there is no credible alternative left.
What usually goes wrong
What I see fail most is the literal migration. The system gets moved exactly as it was, nothing redesigned, and you end up paying hourly for what used to be paid once. It works the same, costs more, and two years later somebody asks why it was done. Lift and shift is not modernising.
What to watch
- How hard it would be to leave or move a piece to another provider, which is future negotiating power.
- Who sees the bill and in what detail: with no owner for the spend, the spend grows on its own.
- Where the data physically sits and what local regulation demands about that.
How I read this entry
What I would install alongside any move to the cloud is the discipline of switching things off. Tag everything by owner, review monthly what is running unused, and give somebody the authority to turn it off. Without that, waste eats the promised savings within two years.
This entry is an excerpt from the original source, selected by the site radar. The commentary above is the site's own and does not belong to the cited publisher.
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Living through this in your own team?
Open the chat and tell me how you're handling it. I'm interested in comparing notes.
