CVE-2019-20405: Atlassian Jira Data Center

Medium severity, CVSS 4.3. EPSS: 0.6% chance of exploitation in the next 30 days.

The JMX monitoring flag in Atlassian Jira Server and Data Center before version 8.6.0 allows remote attackers to turn the JMX monitoring flag off or on via a Cross-site request forgery (CSRF) vulnerability.

Affected products

• Atlassian Jira Data Center: from 7.13.0, before 8.6.0 (fixed in 8.6.0)
• Atlassian Jira Server: from 7.13.0, before 8.6.0 (fixed in 8.6.0)

Published 2020-02-06. Last modified 2026-06-17.