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CVE-2026-77242 MCP Atlassian: Incomplete fix for CVE-2026-27826: DNS rebinding bypasses SSRF validation (validated IP not pinned)

🗓️ 22 Sep 2026 17:58:41Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 11 Views

Unauthenticated SSRF in MCP Atlassian prior to 0.22.0 via DNS rebinding bypass.

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01 Oct 2026 03:47Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
11