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Tag: CVE-2026-21589

CVE-2026-21589, CVSS 9.3 Critical, US federal deadline October 18, 2026, CISA KEV

BreakingAtlassian Multiple Products flaw CVE-2026-21589 is being actively exploited, CISA warns

CISA added the Atlassian Multiple Products vulnerability to its Known Exploited Vulnerabilities catalog on October 15, 2026, with a federal remediation deadline of October 18, 2026.

United StatesCISA

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