Bamboo Data Center and Server Vulnerability Let Attackers Execute Remote Code
A significant security vulnerability has been identified and addressed in Bamboo Data Center, a platform extensively utilized for software build and release management.
A significant security vulnerability has been identified and addressed in Bamboo Data Center, a platform extensively utilized for software build and release management.
The vulnerability, assigned CVE-2026-21570, is a Remote Code Execution (RCE) flaw that allows authenticated users to execute arbitrary malicious code on remote host systems. It has a CVSS score of 8.6, classifying it as a high-priority issue.
Discovered during Atlassian's internal security audits, this vulnerability enables unauthorized command execution on servers hosting the Bamboo application. The core issue requires high privileges to exploit but can be executed over a network connection with low complexity and zero user interaction.
If exploited, the vulnerability can compromise the confidentiality, integrity, and availability of the host infrastructure. As Bamboo Data Center is central to continuous integration and deployment (CI/CD) workflows, a successful attack poses significant supply chain risks. Threat actors could inject malicious code, steal source code, or access other sensitive network segments.
The core issue requires high privileges to exploit but can be executed over a network connection with low complexity and zero user interaction.
Affected Versions and Patch Management
The issue affects versions starting from 9.6.0 and includes major releases such as 10.0, 10.1, 11.0, and 12.0. Atlassian has released security updates across its supported deployment tracks. Organizations are advised to cross-reference their deployment with the official fix list to ensure remediation.
Atlassian recommends upgrading to the latest software iteration. For those unable to migrate immediately, targeted security patches are available for older supported branches. Administrators using versions 9.6, 10.2, or 12.1 can apply these point releases. Unsupported versions require an upgrade to a fixed version.
The latest installation binaries and release notes can be accessed from the Atlassian download archives.
Based on reporting by Cyber Security News.
