BleepingComputer·6h ago criticalHackers exploit critical Atlassian flaw after public PoC release#atlassian#cve-2026-21589#jira 21 sources in the wild 4 min2
CERT-EU Advisories·Jun 10, 2026 critical2026-015: Critical Vulnerability in Multiple Atlassian Products#cve-2026-21589#vulnerability 3 min