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feature 96% Confidence Gate September 24, 2026

How Cloudflare addressed a cross-tenant data exposure vulnerability in Containers

External security researchers at Accomplish identified a vulnerability in Cloudflare Containers that could expose residual disk data from previous workloads. We explain how the issue worked, how we investigated it, and t...

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Impact & Verification Analysis

WHO IS AFFECTED

Developers, software engineers, and active Cloudflare users.

WHY IT MATTERS

Enhances platform capabilities, developer velocity, and product capabilities.

Full Fact Overview

External security researchers at Accomplish identified a vulnerability in Cloudflare Containers that could expose residual disk data from previous workloads. We explain how the issue worked, how we investigated it, and the steps we took to remediate it.

Multi-Source Evidence Chain (1)

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