CVE-2021-31607: Fedoraproject Fedora

High severity, CVSS 7.8. EPSS: 5.9% chance of exploitation in the next 30 days.

In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for local privilege escalation on a minion. The attack requires that a file is created with a pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes popen unsafely).

Affected products

• Fedoraproject Fedora: version 33 only; version 34 only; version 35 only
• SaltStack Salt: from 2016.9, up to and including 3002.6

Published 2021-04-23. Last modified 2026-06-17.