PYSEC-2026-4096 MCP Atlassian: SSRF Protection Bypass

Environment - Project: sooperset/mcp-atlassian - Affected function: validateurlforssrf - Affected path: header-based Jira/Confluence URL authentication flow - Tested endpoint: POST /mcp - Tested version: 2.14.5 Description The SSRF protection in validateurlforssrf can be bypassed with a URL...

PT-2026-105848

Environment - Project: sooperset/mcp-atlassian - Affected function: validate url for ssrf - Affected path: header-based Jira/Confluence URL authentication flow - Tested endpoint: POST /mcp - Tested version: 2.14.5 Description The SSRF protection in validate url for ssrf can be bypassed with a URL...