CVE-2026-110842
CVE-2026-110842 · n8n before 2.41.4 and 2.42.1 Prototype Pollution via MCP Workflow-Validation Interpreter
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
n8n before 2.41.4 and 2.42.x before 2.42.1 contains a prototype pollution vulnerability in the MCP workflow-validation tool, whose interpreter evaluates caller-supplied code in the main process, reads inherited properties, and permits assignment onto shared prototypes. An authenticated member holding only a workflow:read grant can replace a built-in method with one returning a truthy value so server-side permission checks accept unheld scopes, enabling takeover of owner accounts not protected by MFA.
CVSS 7.7 · Alta · EPSS 0,3% · Corrección disponible
- Publicación
- Actualización
Productos y versiones afectados
n8n
- Versiones
- ≥ 0, < 2.41.4: Afectada (semver)
- ≥ 2.42.0, < 2.42.1: Afectada (semver)
Actualiza a 2.41.4; Actualiza a 2.42.1