Server-side Request Forgery (SSRF) Affecting mcp-atlassian package, versions [,0.22.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-MCPATLASSIAN-20158884
- published27 Sept 2026
- disclosed14 Sept 2026
- creditUnknown
Introduced: 14 Sep 2026
NewCVE-2026-73497 (opens in a new tab)How to fix?
Upgrade mcp-atlassian to version 0.22.0 or higher.
Overview
mcp-atlassian is a The Model Context Protocol (MCP) Atlassian integration is an open-source implementation that bridges Atlassian products (Jira and Confluence) with AI language models following Anthropic's MCP specification. This project enables secure, contextual AI interactions with Atlassian tools while maintaining data privacy and security. Key features include:
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the validate_url_for_ssrf process. An attacker can access internal cloud metadata or internal services by exploiting DNS rebinding to manipulate the resolution of attacker-controlled headers during outbound requests.