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Atlassian Releases Security Updates for Confluence Server and Data Center

Description

On August 25, 2021, Atlassian released security updates to address a remote code execution vulnerability (CVE-2021-26084) affecting Confluence Server and Data Center. Recently, CVE-2021-26084 has been detected in exploits in the wild. A remote attacker could exploit this vulnerability to take control of an affected system. CISA urges users and administrators to review [Atlassian Security Advisory 2021-08-25](<https://confluence.atlassian.com/doc/confluence-security-advisory-2021-08-25-1077906215.html>) and immediately apply the necessary updates. This product is provided subject to this Notification and this [Privacy & Use](<https://www.dhs.gov/privacy-policy>) policy. **Please share your thoughts.** We recently updated our anonymous [product survey](<https://www.surveymonkey.com/r/CISA-cyber-survey?product=https://us-cert.cisa.gov/ncas/current-activity/2021/09/03/atlassian-releases-security-updates-confluence-server-and-data>); we'd welcome your feedback.


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