CyberRota Analysis
AI-GeneratedThe vulnerability in MCP Atlassian affects the confluence_upload_attachment function, allowing attackers to exploit an insufficient path restriction to upload arbitrary files outside the intended workspace. This could lead to unauthorized access to sensitive server-readable files, posing a significant risk to data integrity and confidentiality. Organizations using affected versions of Confluence and Jira should prioritize upgrading to version 0.22.0 to mitigate this high-severity risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)