Critical Vulnerabilities Discovered in Atlassian Products
ID: 47ff0ca9-cce6-5c1f-b9b4-12c248ce87b8
STIX ID: report--47ff0ca9-cce6-5c1f-b9b4-12c248ce87b8
Feed Name: ThreatCluster
Threat Score
Two critical vulnerabilities were disclosed in Atlassian products: CVE-2026-21589 (CVSS 9.3, published Oct 5, 2026; PoC released Oct 7, 2026) and CVE-2026-102255 (CVSS 10.0, published Oct 7, 2026). Exploitation attempts have reportedly started; organizations using affected Atlassian products are urged to apply patches immediately to mitigate risks to sensitive data and systems while the situation evolves.
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