Executive Risk Summary
"A vulnerability in the MCP Atlassian server allows an attacker to write arbitrary content to any path the server process has write access to, potentially leading to arbitrary code execution. This issue is fixed in version 0.17.0 of the MCP Atlassian server."
Anticipated Attack Path
- 1. Upload a malicious Confluence attachment
- 2. Call the confluence_download_attachment MCP tool with a crafted download_path parameter
- 3. Write arbitrary content to a sensitive location, such as /etc/cron.d/
Am I Vulnerable?
- Verify the version of the MCP Atlassian server
- Check for any suspicious Confluence attachments
- Monitor system logs for signs of unauthorized access or malicious activity
Operational Audit Arsenal
Target Type Process
Target Asset mcp-atlassian
Standard Path /usr/bin/mcp-atlassian
Manual Verification Required
This is a non-Windows asset (Atlassian). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.
Patch Impact Forecast
Reboot Required Unlikely
Minimal
Internal Work Notes
CVE-2026-27825: Arbitrary code execution vulnerability in MCP Atlassian server, fixed in version 0.17.0. Apply patch to prevent potential exploitation.
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
Related Atlassian Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.