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GHSA-2XJ6-XX86-CWWC MCP Atlassian: Arbitrary File Read & Exfiltration (Confused Deputy) in JIRA update_issue

🗓️ 22 Sep 2026 20:34:52Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

Atlassian MCP server allows arbitrary file read and exfiltration via update_issue tool.

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22 Sep 2026 21:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.6
EPSS0.00514
4