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CVE-2026-105741

Publié : 5 octobre 2026
Modifié : 5 octobre 2026
Lien officiel NVD
Score CVSS
7.1
HIGH

Description détaillée

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.5.0 until 1.10.3, an IP spoofing vulnerability in the Model Context Protocol (MCP) configuration installation endpoint (POST /api/v1/mcp/project/{project_id}/install) allowed authenticated remote attackers to bypass the "local-only" access restriction. By sending a spoofed X-Forwarded-For: 127.0.0.1 header, an attacker could make the server treat the request as originating from localhost, letting them write/overwrite an MCP client configuration file on the server's filesystem. This vulnerability is fixed in 1.10.3.

Vecteur d'attaque (CVSS)

Vecteur brut :CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Références et Patchs

https://github.com/langflow-ai/langflow/commit/1f39a4b9d62c9dfa1b21fa7f85e23a180c351b72https://github.com/langflow-ai/langflow/commit/94859df33acd70b2a1f816e26d68f5e89a7e5639https://github.com/langflow-ai/langflow/pull/13915https://github.com/langflow-ai/langflow/releases/tag/v1.10.3https://github.com/langflow-ai/langflow/security/advisories/GHSA-4f6c-2vvp-gw82

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