The snapd package fixes 1 vulnerability

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[TLP:CLEAR] The snapd package fixes 1 vulnerability

The snapd package fixes a high-severity vulnerability with version 2.75.1 [1]. Affected Ubuntu releases and their fixed versions [2]: questing - 2.73+ubuntu25.10.1 noble - 2.73+ubuntu24.04.2 jammy - 2.73+ubuntu22.04.1 focal - 2.67.1+20.04ubuntu1~esm1 bionic - 2.61.4ubuntu0.18.04.1+esm2 xenial - 2.61.4ubuntu0.16.04.1+esm2

snapd - (CVE-2026-3888)

CVSS 7.8 (High)

An authenticated local attacker can gain full root access to the operating system by spoofing symlink files. Exploiting the vulnerability requires automatic cleanup via systemd-tmpfiles to be enabled [2][3]. Further details can be found at [3].

The vulnerability is present in product:

snapd; <2.75.1;

CVSS: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

More information:

CVE-2026-3888 at cve.org, NVD
CWE-268: Privilege Chaining at cwe.mitre.org

The vulnerability was publicly disclosed 17. 3. 2026.

Links

By CESNET, z.s.p.o. Martin Krajči on 19. 3. 2026.

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[TLP:CLEAR] The snapd package fixes 1 vulnerability

snapd - (CVE-2026-3888)

CVSS 7.8 (High)

Links