CVE-2026-54449
CVE-2026-54449 · LangBot: Authenticated RCE Via MCP Configuration
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
LangBot is a global IM bot platform designed for LLMs. In version 4.10.7 and earlier, any authenticated user can add or change an STDIO MCP server configuration without an adequate authorization boundary. In src/langbot/pkg/provider/tools/loaders/mcp.py, StdioServerParameters accepts the configured command and arguments and starts a server-side subprocess on the LangBot server. An attacker who can sign up or obtain an account can use the Extensions MCP configuration to execute arbitrary commands with the privileges of the LangBot service, enabling data disclosure, modification, and service disruption. No fixed version is available as of this review.
CVSS 8.8 · Alta · EPSS 0,7%
- Publicación
- Actualización
Pila tecnológica: python
Productos y versiones afectados
langbot
- Versiones
- <= 4.10.7: Afectada
Sin corrección publicada
langbot PyPI
- Versiones
- 4.1.0
- 4.1.1b1
- 4.10.0
- 4.10.0b1
- 4.10.0b2
- 4.10.0b3
- 4.10.1
- 4.10.2
- 4.10.3
- 4.10.4
- 4.10.5
- 4.4.1b1
- 4.5.1
- 4.5.2
- 4.5.3
- 4.5.4
- 4.6.0
- 4.6.0b1
- 4.6.0b2
- 4.6.1
- 4.6.2
- 4.6.3
- 4.6.4
- 4.6.5
- 4.7.0
- 4.7.1
- 4.7.2
- 4.8.0
- 4.8.1
- 4.8.2
- 4.8.3
- 4.8.4
- 4.8.5
- 4.8.6
- 4.8.7
- 4.9.0
- 4.9.1
- 4.9.2
- 4.9.3
- 4.9.4
- 4.9.5
- 4.9.6
- 4.9.7
- Intervalos de versiones afectados
- ECOSYSTEM: ≤ 4.10.5
Sin corrección publicada