CVE-2020-35459: Clusterlabs Crmsh

High severity, CVSS 7.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in ClusterLabs crmsh through 4.2.1. Local attackers able to call "crm history" (when "crm" is run) were able to execute commands via shell code injection to the crm history commandline, potentially allowing escalation of privileges.

Affected products

• Clusterlabs Crmsh: up to and including 4.2.1
• Debian Debian Linux: version 9.0 only

Published 2021-01-12. Last modified 2026-06-17.