CVE-2026-109518 APT vulnerability fixes available
Max Justicz discovered and responsibly disclosed a vulnerability in APT, the package manager used in Debian, Ubuntu, and derivative Linux distributions. The vulnerability has been assigned the identifier CVE-2026-109518 and has a severity of High. An on-path attacker who can manipulate the HTTP traffic between a system and an archive server can trigger the installation of an attacker-controlled.deb package file and obtain root privileges on the target system.