AIKIDO-2026-292697
mcp-atlassian is vulnerable to Improper Authorization
88
High Risk
This Affects:
mcp-atlassianTL;DR
The ENABLED_TOOLS and toolset filters are applied only when listing tools, while the tools/call handler dispatches from the full unfiltered tool registry. A client that knows a tool name can invoke any registered tool, including write and delete operations, regardless of the configured allowlist. This defeats least-privilege configurations on multi-user HTTP deployments. The fix enforces the tool authorization filters at dispatch time, not just at listing time.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you rely on ENABLED_TOOLS or toolset filtering as an access-control boundary on the HTTP transport.
Background info
mcp-atlassian is vulnerable to Improper Authorization in versions 0.0.1 - 0.21.1.
How to fix this
Upgrade the mcp-atlassian library to the patch version.
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