CVE-2021-21996: Debian Linux

High severity, CVSS 7.5. EPSS: 3.5% chance of exploitation in the next 30 days.

An issue was discovered in SaltStack Salt before 3003.3. A user who has control of the source, and source_hash URLs can gain full file system access as root on a salt minion.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 33 only; version 34 only; version 35 only
• SaltStack Salt: before 3000.3 (fixed in 3000.3)

Published 2021-09-08. Last modified 2026-06-17.