Hub/AI Security/Advisories/GHSA-4gxg-m5jx-9j57
Case-variant path bypasses symlink check and allows creating files outside allowed directories in server-filesystem
MCP reference servers security advisory.
| GHSA | GHSA-4gxg-m5jx-9j57 |
|---|---|
| Published | Oct 25, 2026 |
| Severity | Medium 5.3 |
| CVE | None assigned |
| Status | patched |
| Affected | = 2026.8.31, >= 1.0.0, < 2.0.1 |
| Fixed in | 2.0.1 |
| Component | MCP reference servers |
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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