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Hacker News·2 min read·hard

CVE-2026-53361 AF_Unix GC vs. MSG_PEEK use-after-free container escape

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CVE-2026-53361 AF_Unix GC vs. MSG_PEEK use-after-free container escape
✦AI Summary

A critical use-after-free vulnerability, CVE-2026-53361, has been identified in the Linux kernel's AF_UNIX socket garbage collector. The flaw allows unprivileged users to escape containers by exploiting a race condition during MSG_PEEK operations.

Why it mattersUnlock →

CVE-2026-53361 — an unprivileged, container-escapable use-after-free in the AF_UNIX socket garbage collector. This is the single-vector (MSG_PEEK only) version.

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