Exploit Released for Unpatched Ubuntu Linux Flaw Enabling Host-Root Container Escape

The Hacker News - Sep 23, 2026

A use-after-free in the Linux kernel's AF_UNIX socket subsystem can be used to escape a container and gain root on the host, security firm DepthFirst said in research published September 22. The flaw, tracked as CVE-2026-80521 (CVSS score: 7.8), was fixed upstream on August 6, but Ubuntu has not shipped the patch for its 26.04, 24.04, or 22.04 LTS releases. DepthFirst

Read full article

MORE NEWS

Science Thread

Science Thread delivers quality and fascinating science and technology content that matters on a daily basis and makes it go viral.

Sign Up