SecurityLobstersabout 2 hours ago
Containers No Longer Secure Isolation Boundary
8 min read
Researchers exploited CVE-2026-80521, a Linux kernel use-after-free in the AF_UNIX subsystem, to escape containers. They won a Google kernelCTF slot on July 24, 2026. With 5,976 kernel CVEs published by mid-September 2026, AI is accelerating vulnerability discovery. The bug remains unpatched in Ubuntu 26.04. Organizations should move sensitive workloads to Firecracker or Kata Containers.
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