Atlassian discloses CVE-2026-21589, a critical 9.3-rated no-auth file access flaw
TechNadu · x · 2026-10-06
Atlassian has disclosed CVE-2026-21589, a critical vulnerability (CVSS 9.3) affecting multiple Data Center products. No authentication is required to exploit it. Patches are available, and exposed instances that can't be updated immediately should be restricted.
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