CVE-2026-77262highCWE-22

CVE-2026-77262: fallo de gravedad alta en sooperset mcp-atlassian

MCP Atlassian: Path Traversal / Arbitrary File Read in confluence_upload_attachment MCP tool (incomplete fix of CVE-2026-27825)

Publicada el · Actualizada el

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Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

41Vexday Risk Score

Sin señal de explotación. Ella tiene prueba de concepto pública.

ssvc Attendcvss 8.6epss 0.6%
de la publicación al armael mismo día
Publicada en NVD22 sept
1ª PoC29 abr
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, confluence_upload_attachment accepts an attacker-controlled file_path and does not apply the path restriction added for the earlier download vulnerability. A caller can traverse outside the workspace and upload arbitrary server-readable files to Confluence. The advisory traces the vulnerable input and processing flow through confluence_upload_attachment, file_path, and CVE-2026-27825, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Productos afectados
sooperset · mcp-atlassian
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