Hub/AI Security/Advisories/GHSA-q978-78c7-phqw
A remote MCP server can execute arbitrary code on the user's machine through the OAuth authorization URL (PowerShell subexpression injection on Windows and WSL)
MCP Inspector security advisory.
| GHSA | GHSA-q978-78c7-phqw |
|---|---|
| Published | Oct 21, 2026 |
| Severity | High 8.8 |
| CVE | None assigned |
| Status | patched |
| Affected | >= 2.0.0, <= 2.11.0 |
| Fixed in | 2.12.0 |
| Component | MCP Inspector |
Sources
Checked 2026-11-04. We copy severity and fix versions from the source and never estimate them.
Affected tools
Weekly, free
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