Michael Andreacchio

**Name of the Vulnerable Software and Affected Versions** Jira Server & Data Center versions prior to 7.13.18 Jira Server & Data Center versions 8.0.0 through 8.5.9 Jira Server & Data Center versions 8.6.0 through 8.12.1 **Description** The issue allows a remote attacker with limited privileges to view a Jira instance's Support Entitlement Number (SEN) via an Information Disclosure vulnerability in the HTTP Response headers. **Recommendations** For versions prior to 7.13.18, update to version 7.13.18 or later. For versions 8.0.0 through 8.5.9, update to version 8.5.9 or later. For versions 8.6.0 through 8.12.1, update to version 8.12.1 or later.