Atlassian security advisory (AV26-045)

Serial number: AV26-045
Date: January 21, 2026

On January 20, 2026, Atlassian published a security advisory to address vulnerabilities in the following products:

• Bamboo Data Center and Server – multiple versions
• Bitbucket Data Center and Server – multiple versions
• Confluence Data Center and Server – multiple versions
• Crowd Data Center and Server – versions 7.1.0 to 7.1.2, versions 6.3.0 to 6.3.3
• Jira Data Center and Server – multiple versions
• Jira Service Management Data Center and Server – multiple versions

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

• Security Bulletin - January 20 2026
• Atlassian Security Advisories and Bulletins