https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-30T15:53:15.111563+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-77258 CVE-2026-77258 — MCP Atlassian: Arbitrary file read/exfiltration via upload_attachment missing validate_safe_path() 2026-09-30T15:53:15.129586+00:00

Affected: sooperset mcp-atlassian

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, upload_attachment in src/mcp_atlassian/confluence/attachments.py accepts a caller-controlled file_path and opens the selected server-local file without restricting it to the workspace. A permitted Confluence MCP caller can upload the file as an attachment and disclose data readable by the server process. This issue is fixed in version 0.22.0.