CVE-2026-21571
published 2026-04-21CVE-2026-21571: 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…
PriorityP265critical9.4CVSS 4.0
AVNACLATNPRLUINVCHVIHVAHSCHSIHSAHEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
1.27%
66.4th percentile
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]).
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| atlassian | bamboo_data_center | — | — |
| atlassian | bamboo_data_center | — | — |
| atlassian | bamboo_data_center | — | — |
| atlassian | bamboo_data_center | — | — |
| atlassian | bamboo_data_center | — | — |
| atlassian | bamboo_data_center | — | — |
| atlassian | bamboo_data_center | — | — |
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GHSA
GHSA-6jpg-3x8j-cwmr: This Critical severity OS Command Injection vulnerability was introduced in versions 9
ghsa_unreviewed·2026-04-21
CVE-2026-21571 [CRITICAL] CWE-78 GHSA-6jpg-3x8j-cwmr: This Critical severity OS Command Injection vulnerability was introduced in versions 9
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
VulDB
Atlassian Bamboo Data Center up to 9.6.24/10.2.17/12.1.5 Release Note os command injection
vuldb·2026-04-21·CVSS 9.4
CVE-2026-21571 [CRITICAL] Atlassian Bamboo Data Center up to 9.6.24/10.2.17/12.1.5 Release Note os command injection
A vulnerability classified as critical was found in Atlassian Bamboo Data Center up to 9.6.24/10.2.17/12.1.5. This vulnerability affects unknown code of the component Release Note Handler. Such manipulation leads to os command injection.
This vulnerability is documented as CVE-2026-21571. The attack can be executed remotely. There is not any exploit available.
Upgrading the affected component is advised.
No detection rules found.
No public exploits indexed.
2026-04-21
Published