Critical CVE-2026-21589 Vulnerability in Atlassian Data Center Products
ID: 6860683b-433a-5885-835b-2689edb0576f
STIX ID: report--6860683b-433a-5885-835b-2689edb0576f
Feed Name: ThreatCluster
Threat Score
Multiple news outlets report a critical path traversal vulnerability (CVE-2026-21589) in eight Atlassian Data Center products that enables unauthenticated attackers to read known files from affected self-hosted instances, potentially exposing development infrastructure and sensitive data.
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