PT-2026-96945

Name of the Vulnerable Software and Affected Versions MCP Atlassian versions prior to 0.22.0 Description Jira and Confluence attachment upload tools accept arbitrary local filesystem paths and send the selected bytes to Atlassian. In HTTP or multi-user deployments, a caller can cross the...

PT-2026-96903

Name of the Vulnerable Software and Affected Versions MCP Atlassian versions prior to 0.22.0 Description The Jira and Confluence attachment upload tools fail to validate file paths, allowing for path traversal. An authenticated MCP client or an AI assistant manipulated via prompt injection can...

PT-2026-96950

Name of the Vulnerable Software and Affected Versions MCP Atlassian versions prior to 0.22.0 Description Missing path validation in the confluence upload attachment function allows an authenticated client to read arbitrary files from the server filesystem and exfiltrate their contents to a...

PT-2026-96951

Name of the Vulnerable Software and Affected Versions MCP Atlassian versions 0.17.0 through 0.21.0 Description A path traversal issue exists in the confluence upload attachment tool. The file path variable is passed directly to the open function without proper validation, allowing a caller to rea...

GHSA-G5R6-GV6M-F5JV mcp-atlassian: Arbitrary file read via missing path validation in confluence_upload_attachment

Summary confluenceuploadattachment passes filepath directly to openfilepath, "rb" with no path validation. Any authenticated MCP client — or an AI agent manipulated via prompt injection — can read any file the server process can access and exfiltrate it to Confluence as an attachment. Details Roo...

mcp-atlassian: Arbitrary file read via missing path validation in confluence_upload_attachment

Summary confluenceuploadattachment passes filepath directly to openfilepath, "rb" with no path validation. Any authenticated MCP client — or an AI agent manipulated via prompt injection — can read any file the server process can access and exfiltrate it to Confluence as an attachment. Details Roo...