Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files via a path traversal vulnerability in the /WEB-INF/web.xml endpoint.
The affected versions are before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1.
- version < 8.5.14
- 8.6.0 ≤ version < 8.13.6
- 8.14.0 ≤ version < 8.16.1
Until the upgrade you may use the following workaround to protect the files:
Note: Workaround 1 in the above KB article is not valid for this purpose. Workaround 2 (proxy/load balancer configuration) is valid.