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.
History

Wed, 18 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Canonical
Canonical ubuntu
Vendors & Products Canonical
Canonical ubuntu

Wed, 18 Mar 2026 04:30:00 +0000

Type Values Removed Values Added
References

Wed, 18 Mar 2026 00:15:00 +0000


Tue, 17 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 17 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title Local Privilege Escalation in snapd
Weaknesses CWE-268
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published: 2026-03-17T14:02:08.475Z

Updated: 2026-03-18T08:59:07.522Z

Reserved: 2026-03-10T16:03:08.583Z

Link: CVE-2026-3888

cve-icon Vulnrichment

Updated: 2026-03-17T14:50:42.589Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-17T14:16:17.410

Modified: 2026-03-18T04:17:30.720

Link: CVE-2026-3888

cve-icon Redhat

No data.