CVE 9.4 CRITICAL

CVE-2026-21571_CVE-2026-21571

9.4 / 10
CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Description

This Critical severity OS Command Injection vulnerability was introduced in versions 9.6.0, 10.0.0, 10.1.0, 10.2.0,
11.0.0, 11.1.0, 12.0.0, and 12.1.0 of Bamboo Data Center.
 
This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 9.4 and a CVSS Vector of
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H allows an authenticated attacker to execute commands
on the remote system, which has high impact to confidentiality, high impact to integrity, high impact to availability,
and requires no user interaction.
 
Atlassian recommends that Bamboo Data Center customers upgrade to latest version, if you are unable to do so, upgrade
your instance to one of the specified supported fixed versions:
Bamboo Data Center 9.6.0: Upgrade to a release greater than or equal to 9.6.25
Bamboo Data Center 10.2: Upgrade to a release greater than or equal to 10.2.18 
Bamboo Data Center 12.1: Upgrade to a release greater than or equal to 12.1.6

See the release notes ([https://confluence.atlassian.com/bambooreleases/bamboo-release-notes-1189793869.html]). You can download the latest version of Bamboo Data Center from the download center ([https://www.atlassian.com/software/bamboo/download-archives]).

AI Analysis

OS Command Injection vulnerability allowing remote code execution

Basic Information

ID CVE-2026-21571
Source atlassian
Published Apr 21, 2026 at 17:00
Modified Apr 21, 2026 at 17:24

Affected Product

Vendor Atlassian
Product Bamboo Data Center
Version 12.1.0 to 12.1.3
Affected Versions Atlassian Bamboo Data Center 12.1.0 to 12.1.3
Atlassian Bamboo Data Center 12.0.0 to 12.0.2
Atlassian Bamboo Data Center 11.0.0 to 11.0.8
Atlassian Bamboo Data Center 10.2.0 to 10.2.16
Atlassian Bamboo Data Center 10.1.0 to 10.1.1
Atlassian Bamboo Data Center 10.0.0 to 10.0.3
Atlassian Bamboo Data Center 9.6.2 to 9.6.24

CWE Classification

AI Assessment

AI Score 9.4 / 10
AI Severity Critical
Vendor Atlassian
Product Bamboo Data Center
Version 9.6.0, 9.6.2 to 9.6.24, 10.0.0 to 10.0.3, 10.1.0 to 10.1.1, 10.2.0 to 10.2.16, 11.0.0 to 11.0.8, 11.1.0, 12.0.0 to 12.0.2, 12.1.0 to 12.1.3

References

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