CVE-2026-21589: Critical Atlassian File Access Atlassian has disclosed CVE-2026-21589, a critical unauthenticated arbitrary file-access vulnerability affecting eight self-hosted products. The flaw carries a CVSS v4.0 score of 9.3 and can expose specific files within an application’s web root. What Is CVE-2026-21589?
CVE-2026-21589: Critical Atlassian File Access
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