Debian patches APT flaw that let network attackers swap verified packages for root code
Researcher Max Justicz, now Charge Robotics cofounder and CTO, found CVE-2026-109518 in APT; Debian fixed trixie in apt 3.0.4.
By RuntimeWire Staff · Published
Primary source: Hacker News
Why it matters
APT runs with root trust on Debian systems and mediates every package install and update. A network attacker could replace a package after verification, so trixie systems need the fix in apt 3.0.4.
Debian published DSA 6607-1 on November 4th, 2026, fixing a vulnerability in APT that could let a man-in-the-middle attacker replace a package after verification and execute arbitrary code as root. The advisory credits researcher Max Justicz with discovering the flaw, tracked as CVE-2026-109518.…
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