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  CVE-2026-21589: Critical Atlassian Flaw Enables Unauthenticated File Access

  CVE-2026-21589: Critical Atlassian Flaw Enables Unauthenticated File Access

  

  Executive SummaryAtlassian has disclosed CVE-2026-21589, a critical arbitrary file access vulnerability affecting multiple Atlassian Data Center products.The vulnerability carries a CVSS v4.0 score of ... Read more

  Published Date: Oct 07, 2026 (4 days, 22 hours ago)

  Vulnerabilities has been mentioned in this article.

  CVE-2026-21589 CVE-2026-88779 CVE-2026-90970
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