CVE-2021-39113: Atlassian Data Center

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to continue to view cached content even after losing permissions, via a Broken Access Control vulnerability in the allowlist feature. The affected versions are before version 8.13.9, and from version 8.14.0 before 8.18.0.

Affected products

• Atlassian Data Center: before 8.13.9 (fixed in 8.13.9)
• Atlassian Jira: before 8.13.9 (fixed in 8.13.9)
• Atlassian Jira Data Center: from 8.14.0, before 8.18.0 (fixed in 8.18.0)
• Atlassian Jira Server: from 8.14.0, before 8.18.0 (fixed in 8.18.0)

Published 2021-08-30. Last modified 2026-06-17.