CVE-2026-3888
HIGH7.8EPSS 0.01%snapd - security update
Published: 3/17/2026Modified: 4/28/2026
Also known as:DEBIAN-CVE-2026-3888
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.
Affected packages (2)
- Debian/snapdfrom 0
- Debian/snapdfrom 0, < 2.57.6-1+deb12u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |