CVE-2026-116685
CVE-2026-116685 · Model Context Protocol Python SDK: HTTP client transports followed cross-origin redirects carrying custom headers and bodies
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. From 1.8.0 until 1.30.0 and 2.2.0, streamable_http_client, streamablehttp_client, sse_client, ClientSessionGroup, OAuth, and create_mcp_http_client client paths enable follow_redirects and follow redirects to a different origin, forwarding caller-supplied custom credential headers and, for 307 or 308 responses, the request body. An attacker who can influence a trusted endpoint's redirect destination can receive that material. This issue is fixed in versions 1.30.0 and 2.2.0.
CVSS 5.9 · Media · EPSS 0,4% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: python
Productos y versiones afectados
python-sdk
- Versiones
- >= 1.8.0, < 1.30.0: Afectada
- >= 2.0.0, < 2.2.0: Afectada
Sin corrección publicada
mcp PyPI
- Versiones
- 2.0.0
- 2.0.1
- 2.1.0
- 2.1.1
- Intervalos de versiones afectados
- ECOSYSTEM: ≥ 2.0.0, < 2.2.0
Actualiza a 2.2.0
mcp PyPI
- Versiones
- 1.10.0
- 1.10.1
- 1.11.0
- 1.12.0
- 1.12.1
- 1.12.2
- 1.12.3
- 1.12.4
- 1.13.0
- 1.13.1
- 1.14.0
- 1.14.1
- 1.15.0
- 1.16.0
- 1.17.0
- 1.18.0
- 1.19.0
- 1.20.0
- 1.21.0
- 1.21.1
- 1.21.2
- 1.22.0
- 1.23.0
- 1.23.1
- 1.23.2
- 1.23.3
- 1.24.0
- 1.25.0
- 1.26.0
- 1.27.0
- 1.27.1
- 1.27.2
- 1.28.0
- 1.28.1
- 1.29.0
- 1.29.1
- 1.8.0
- 1.8.1
- 1.9.0
- 1.9.1
- 1.9.2
- 1.9.3
- 1.9.4
- Intervalos de versiones afectados
- ECOSYSTEM: ≥ 1.8.0, < 1.30.0
Actualiza a 1.30.0
Fuentes originales
- https://github.com/modelcontextprotocol/python-sdk/security/advisories/GHSA-5h93-6whr-6q8j
- https://github.com/modelcontextprotocol/python-sdk/pull/3397
- https://github.com/modelcontextprotocol/python-sdk/pull/3448
- https://github.com/modelcontextprotocol/python-sdk/commit/2106335745563b2321b8c73fef2c12903d00aa6e
- https://github.com/modelcontextprotocol/python-sdk/commit/c6762e821c527925f0b617db216d00fbd1d0bf99
- https://github.com/modelcontextprotocol/python-sdk/releases/tag/v1.30.0
- https://github.com/modelcontextprotocol/python-sdk/releases/tag/v2.2.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-116685