CVE-2026-21570

State: Published
Severity: 8.6 High
Published: Mar 17, 2026
Updated: Mar 17, 2026
Reserved: Jan 1, 2026

Description

This High severity RCE (Remote Code Execution) 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 8.6, allows an authenticated attacker to execute malicious code on the remote system.

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: Upgrade to a release greater than or equal to 9.6.24

Bamboo Data Center 10.2: Upgrade to a release greater than or equal to 10.2.16

Bamboo Data Center 12.1: Upgrade to a release greater than or equal to 12.1.3

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]).

This vulnerability was reported via our Atlassian (Internal) program.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	atlassian

Weaknesses

CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected Products

Product	Versions
Bamboo Data CenterAtlassian	12.1.0 to 12.1.2Affected 12.0.0 to 12.0.2Affected 11.0.0 to 11.0.8Affected 10.2.0 to 10.2.15Affected 10.1.0 to 10.1.1Affected 10.0.0 to 10.0.3Affected 9.6.1 to 9.6.23Affected 12.1.3Not affected 10.2.16Not affected 9.6.24Not affected

References

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