CVE-2026-21589: This is a vulnerability in Bitbucket Data Center, Confluence Data Center, J

Description

This is a vulnerability in Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center. Crowd Data Center, Crucible and Fisheye. This Arbitrary File Access vulnerability allows an unauthenticated attacker to access specific files within the web application root directory in affected versions. Exploitation requires prior knowledge of the target file's exact name and path; this vulnerability does not allow attackers to enumerate or list directory contents. In some configurations, there may be some sensitive files that make this highly severe. This vulnerability allows an unauthenticated remote attacker to access specific files within the web application root directory in affected versions. The vulnerability must be addressed for affected versions of: -- Bitbucket Data Center, introduced in version >= 4.6.0, fix versions: 9.4.26, 10.2.8, 10.5.1 -- Confluence Data Center, introduced in version >= 5.10.0, fix versions 9.2.26, 10.2.19 -- Crowd Data Center, introduced in version >= 2.11.0, fix versions 6.3.7, 7.0.3, 7.1.7, 7.2.4 -- Jira Software Data Center, introduced in version >= 7.1.0, fix versions 9.12.40, 10.3.26, 11.3.12 -- Jira Service Management Data Center, introduced in version >= 3.1.0, fix versions 5.12.40, 10.3.26, 11.3.12 -- Bamboo Data Center >= 7.0.1, fix versions 10.2.24, 12.1.12 -- Crucible, fix versions 4.9.15 -- Fisheye, fix version 4.9.15 -- Exploitation requires prior knowledge of the target file's exact name and path. The vulnerability does not include the capability to enumerate or list directory contents.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Atlassian Bamboo Data Center

All other versionsaffected
Patch version 10.2.24 and laterunaffected
Patch version 12.1.12 and laterunaffected

Atlassian Bitbucket Data Center

All other versionsaffected
Patch version 10.2.8 and laterunaffected
Patch version 10.5.1 and laterunaffected
Patch version 9.4.26 and laterunaffected

Atlassian Confluence Data Center

All other versionsaffected
Patch version 10.2.19 and laterunaffected
Patch version 9.2.26 and laterunaffected

Atlassian Crowd Data Center

All other versionsaffected
Patch version 7.2.4 and laterunaffected
Patch version 7.1.7 and laterunaffected
Patch version 7.0.3 and laterunaffected
Patch version 6.3.7 and laterunaffected

Atlassian Crucible Data Center

All other versionsaffected
Patch version 4.9.15 and laterunaffected

Atlassian Fisheye Data Center

All other versionsaffected
Patch version 4.9.15 and laterunaffected

Atlassian Jira Service Management Data Center

All other versionsaffected
Patch version 11.3.12 and laterunaffected
Patch version 10.3.26 and laterunaffected
Patch version 5.12.40 and laterunaffected

Atlassian Jira Software Data Center

All other versionsaffected
Patch version 11.3.12 and laterunaffected
Patch version 10.3.26 and laterunaffected
Patch version 9.12.40 and laterunaffected