CVE-2021-26075: Atlassian Data Center

Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days.

The Jira importers plugin AttachTemporaryFile rest resource in Jira Server and Data Center before version 8.5.12, from version 8.6.0 before 8.13.4, and from version 8.14.0 before 8.15.1 allowed remote authenticated attackers to obtain the full path of the Jira application data directory via an information disclosure vulnerability in the error message when presented with an invalid filename.

Affected products

• Atlassian Data Center: before 8.5.12 (fixed in 8.5.12)
• Atlassian Jira: before 8.5.12 (fixed in 8.5.12)
• Atlassian Jira Data Center: from 8.6.0, before 8.13.4 (fixed in 8.13.4); from 8.14.0, before 8.15.1 (fixed in 8.15.1)
• Atlassian Jira Server: from 8.6.0, before 8.13.4 (fixed in 8.13.4); from 8.14.0, before 8.15.1 (fixed in 8.15.1)

Published 2021-04-15. Last modified 2026-06-17.