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    Public Security Vulnerability 
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    Resolution: Fixed
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    Low 
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    8.5.15, 8.13.7
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    None
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        4.3
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        Medium
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        CVE-2021-39120
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to learn when a restricted comment is removed from an issue via an information disclosure vulnerability in the comment notification functionality.
The affected versions are before version 8.18.0.
*Affected versions:*
- version < 8.18.0
*Fixed versions:*
- 8.18.0