CVE-2025-66416
2 advisories.
PyPI/mcp CVE-2025-66416: high
Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default
Action: Upgrade mcp to 1.23.0 or later.
pip install mcp==1.23.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.23.0 | - |
Fixed versions
| 1.23.0 |
Sources
- osv: GHSA-9h52-p55h-vw2f
- https://github.com/modelcontextprotocol/python-sdk/security/advisories/GHSA-9h52-p55h-vw2f
- https://nvd.nist.gov/vuln/detail/CVE-2025-66416
- https://github.com/modelcontextprotocol/python-sdk/commit/d3a184119e4479ea6a63590bc41f01dc06e3fa99
- https://github.com/advisories/GHSA-9h52-p55h-vw2f
- https://github.com/modelcontextprotocol/python-sdk
- https://github.com/pypa/advisory-database/tree/main/vulns/mcp/PYSEC-2026-1617.yaml
- https://pypi.org/project/mcp
CVE-2025-66416 · published · modified · JSON
PyPI/mcp CVE-2025-66416: unknown
Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default
Action: Upgrade mcp to 1.23.0 or later.
pip install mcp==1.23.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.23.0 | - |
Fixed versions
| 1.23.0 |
Sources
- osv: PYSEC-2026-1617
- https://github.com/modelcontextprotocol/python-sdk/security/advisories/GHSA-9h52-p55h-vw2f
- https://nvd.nist.gov/vuln/detail/CVE-2025-66416
- https://github.com/modelcontextprotocol/python-sdk/commit/d3a184119e4479ea6a63590bc41f01dc06e3fa99
- https://github.com/modelcontextprotocol/python-sdk
- https://pypi.org/project/mcp
- https://github.com/advisories/GHSA-9h52-p55h-vw2f
CVE-2025-66416 · published · modified · JSON