MCP Atlassian: Unauthenticated arbitrary local file read via upload_attachment file_path, chained with missing auth on streamable-http transport

Summary In the documented multi-user HTTP deployment --transport streamable-http with global operator Atlassian credentials, sooperset/mcp-atlassian exposes all tools to unauthenticated network clients, and the uploadattachment tool reads an attacker-supplied filepath with no path validation...

GHSA-CC5H-2PWP-PVCC MCP Atlassian: Unauthenticated arbitrary local file read via upload_attachment file_path, chained with missing auth on streamable-http transport

Summary In the documented multi-user HTTP deployment --transport streamable-http with global operator Atlassian credentials, sooperset/mcp-atlassian exposes all tools to unauthenticated network clients, and the uploadattachment tool reads an attacker-supplied filepath with no path validation...

GHSA-5VVX-3H34-F3GJ MPXJ: XXE Vulnerability in MerlinReader

Impact MPXJ used the default configuration when creating a DocumentBuilder instance, which leaves doctype declarations enabled, when parsing the XML content of the ZTIMEINTERVALS column from a Merlin project SQLite file. This would allow a carefully crafted XML payload to read an arbitrary file...

MPXJ: XXE Vulnerability in MerlinReader

Impact MPXJ used the default configuration when creating a DocumentBuilder instance, which leaves doctype declarations enabled, when parsing the XML content of the ZTIMEINTERVALS column from a Merlin project SQLite file. This would allow a carefully crafted XML payload to read an arbitrary file...

CVE-2026-61570

MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype...

CVE-2026-61570 MPXJ: XXE Vulnerability in MerlinReader

MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype...

EUVD-2026-84820

MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype...

CVE-2026-61570 MPXJ: XXE Vulnerability in MerlinReader

MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype...

CVE-2026-61570 MPXJ: XXE Vulnerability in MerlinReader

MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype...

Missing Authentication for Critical Function

Overview mcp-atlassian is a The Model Context Protocol MCP Atlassian integration is an open-source implementation that bridges Atlassian products Jira and Confluence with AI language models following Anthropic's MCP specification. This project enables secure, contextual AI interactions with...

CVE-2026-77257

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, HTTP-exposed Jira and Confluence upload tools pass a caller-provided filepath to local file operations without restricting it to the workspace. A remote MCP caller with tool access ca...

CVE-2026-77259

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, confluenceuploadattachment opens a caller-selected server-local file without checking that the resolved path remains in the workspace. A caller can upload environment files,...

CVE-2026-77248

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, the streamable HTTP transport accepts requests without a user identity and falls back to operator credentials, while uploadattachment accepts an unrestricted filepath. An...

CVE-2026-77255

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, the Jira updateissue attachments argument is converted into local paths and routed to the attachment upload implementation without workspace validation. A caller can make the MCP serv...

EUVD-2026-84763

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, the streamable HTTP transport accepts requests without a user identity and falls back to operator credentials, while uploadattachment accepts an unrestricted filepath. An...

CVE-2026-77248 MCP Atlassian: Unauthenticated arbitrary local file read via upload_attachment file_path, chained with missing auth on streamable-http transport

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, the streamable HTTP transport accepts requests without a user identity and falls back to operator credentials, while uploadattachment accepts an unrestricted filepath. An...

CVE-2026-77248

Versions of MCP Atlassian prior to 0.22.0 are vulnerable to an unauthenticated arbitrary local file read. The streamable HTTP transport accepts requests without a user identity and defaults to operator credentials, while the upload_attachment function accepts an unrestricted file_path . An unauth...

CVE-2026-77248 MCP Atlassian: Unauthenticated arbitrary local file read via upload_attachment file_path, chained with missing auth on streamable-http transport

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, the streamable HTTP transport accepts requests without a user identity and falls back to operator credentials, while uploadattachment accepts an unrestricted filepath. An...

EUVD-2026-84758

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, confluenceuploadattachment opens a caller-selected server-local file without checking that the resolved path remains in the workspace. A caller can upload environment files,...

CVE-2026-77259

The MCP Atlassian Model Context Protocol server (for Confluence and Jira) is vulnerable to an arbitrary file read issue prior to version 0.22.0 . The confluence_upload_attachment function fails to verify that a caller-selected server-local file path remains within the intended workspace. This all...