Critical Atlassian Flaw Exposes File Read Across 8 Data Center Products
RedSide Security October 06, 2026 Vulnerability 8 views
Atlassian disclosed a critical unauthenticated file read vulnerability, CVE-2026-21589, affecting eight self-hosted Data Center products. With a CVSS score of 9.3, attackers who know exact file paths can read files from the web application root.
Patch Management
Atlassian
CVE-2026-21589
Data Center
Critical Vulnerability
File Read
Unauthenticated
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