CuraSec

Plan active

Cloudflare Patches Cross-Tenant Disk Data Leak in Containers Service

2026-09-25 15:49 UTC · The Hacker News · read the source ↗ #cloudflare#container-security#data-isolation
  • Engineer — Plan: If your org runs workloads on Cloudflare Containers, audit what sensitive data those containers wrote to disk — it was potentially readable by other tenants before the fix. No patch action on your end; Cloudflare remediated server-side, but assess whether any secrets, credentials, or PII touched container disk storage.
  • SOC/IR — Skip
  • Leader — Plan: If Cloudflare Containers is in your environment, confirm with your engineering team what data was stored on container disk volumes and whether it could constitute a material data exposure requiring customer notification or regulatory disclosure review.
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