Critical 9.3
CVE-2026-21589
Active Exploitation and Public Exploit Material for CVE-2026-21589
Vendor / product: Atlassian Jira, Confluence, Bitbucket (Data Center and Server products)
Event date: 2026-10-06
Public PoC: Yes
First tracked by RiskWire: 2026-10-16
Sources & citations (4)
- CVE Alert: CVE-2026-21589 redpacketsecurity.com · 2026-10-15
- CVE Alert: CVE-2026-77931 redpacketsecurity.com · 2026-10-16
- CVE Alert: CVE-2026-111352 redpacketsecurity.com · 2026-10-16
- CVE Alert: CVE-2026-111366 redpacketsecurity.com · 2026-10-16
References
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