CVE-2021-39114: Atlassian Confluence Data Center

High severity, CVSS 8.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Affected versions of Atlassian Confluence Server and Data Center allow users with a valid account on a Confluence Data Center instance to execute arbitrary Java code or run arbitrary system commands by injecting an OGNL payload. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

Affected products

• Atlassian Confluence Data Center: before 6.13.23 (fixed in 6.13.23); from 6.14.0, before 7.4.11 (fixed in 7.4.11); from 7.5.0, before 7.11.6 (fixed in 7.11.6); from 7.12.0, before 7.12.5 (fixed in 7.12.5)
• Atlassian Confluence Server: before 6.13.23 (fixed in 6.13.23); from 6.14.0, before 7.4.11 (fixed in 7.4.11); from 7.5.0, before 7.11.6 (fixed in 7.11.6); from 7.12.0, before 7.12.5 (fixed in 7.12.5)

Published 2022-04-05. Last modified 2026-06-17.