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CVE-2026-77244 [mcp-atlassian] Authentication bypass in HTTP transport: AtlassianOpaqueTokenVerifier accepts any non-empty token

🗓️ 22 Sep 2026 17:49:38Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 10 Views

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the HTTP transport accepts requests without a verified user identity and downstream fetcher construction falls back to the operat...

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22 Sep 2026 17:49Current
CVSS 3.110
10