APT CVE-2026-109518: Fix, Impact and Interview Questions

APT CVE-2026-109518 let a network attacker swap a verified package. See what changed in APT 3.3.6, how to patch, and the TOCTOU interview questions.

APT CVE-2026-109518 let a network attacker swap a verified package. See what changed in APT 3.3.6, how to patch, and the TOCTOU interview questions.