Atlassian: “Take immediate action” to patch your Confluence Data Center and Server instances

Atlassian has released an advisory about a critical severity authentication vulnerability in the Confluence Server and Data Center.

All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. Atlassian Cloud sites are not impacted by this vulnerability, so if your Confluence site is accessed via an atlassian.net domain, it is not vulnerable.

Fixes of Confluence Data Center and Server are available for the following versions:

• 7.19.16 or later


• 8.3.4 or later


• 8.4.4 or later


• 8.5.3 or …

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