CVE-2026-3888

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

Local privilege escalation in snapd on Linux allows local attackers to get root privilege by re-creating snap's private /tmp directory when systemd-tmpfiles is configured to automatically clean up this directory. This issue affects Ubuntu 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, and 24.04 LTS.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-268

Affected software

No affected versions have been published.

Timeline

Published: Mar 17, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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