USN-8102-1: snapd vulnerability

Publication date

17 March 2026

Overview

snapd could be used to escalate privilege


Packages

  • snapd - Daemon and tooling that enable snap packages

Details

Qualys discovered that snapd incorrectly handled certain operations in the
snap's private /tmp directory. If systemd-tmpfiles is enabled to automatically
clean up this directory, a local attacker could possibly use this issue to
re-create the deleted directory, resulting in privilege escalation.

Qualys discovered that snapd incorrectly handled certain operations in the
snap's private /tmp directory. If systemd-tmpfiles is enabled to automatically
clean up this directory, a local attacker could possibly use this issue to
re-create the deleted directory, resulting in privilege escalation.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
25.10 questing snapd –  2.73+ubuntu25.10.1
24.04 LTS noble snapd –  2.73+ubuntu24.04.1
22.04 LTS jammy snapd –  2.73+ubuntu22.04.1
20.04 LTS focal snapd –  2.67.1+20.04ubuntu1~esm1  
18.04 LTS bionic snapd –  2.61.4ubuntu0.18.04.1+esm2  
16.04 LTS xenial snapd –  2.61.4ubuntu0.16.04.1+esm2  

Reduce your security exposure

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Have additional questions?

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