Ubuntu snap-confine Flaw Could Give Local Users Root on Default Desktop Installs
ID: bdda998e-356a-5fb2-85c8-9c0a88f674b5
STIX ID: report--bdda998e-356a-5fb2-85c8-9c0a88f674b5
Feed Name: The Hacker News
A high-severity local privilege escalation (CVE-2026-8933, CVSS 7.8) in snap-confine can be exploited by an unprivileged user on default Ubuntu Desktop installations (24.04, 25.10, 26.04) to escalate to root by abusing a race condition during sandbox initialization—specifically using FUSE mounts and symlink attacks against temporary directories and /run/udev to inject rules and trigger systemd-udevd execution. The report provides technical details, references related historical snap-confine flaws, and advises rapid deployment of snapd fixes.
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