CVE-2026-21589
CRITICAL CISACVSS Score
N/A
Severity
CRITICAL
Source
CISA
Published
Oct 15, 2026
Description
Atlassian โ Multiple Products: Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye) contain a files or directories accessible to external parties vulnerability which could allow an unauthenticated attacker to access specific files within the web application root directory in affected versions.