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langflow

A path traversal vulnerability exists in langflow-ai langflow in the 'POST /api/v2/files' endpoint. The 'filename' parameter from multipart form data is not sanitized, allowing attackers to write files to arbitrary filesystem locations using '.. /' sequences. This can lead to full compromise of confidentiality, integrity, and availability of the affected system.

CVE-2026-5027 is a CWE-22 path traversal vulnerability in langflow-ai langflow. The vulnerability arises because the 'POST /api/v2/files' endpoint fails to properly sanitize the 'filename' parameter in multipart form data. An attacker can exploit this by including path traversal sequences ('../') in the filename, enabling arbitrary file write to locations outside the intended directory. This can result in complete system compromise including data disclosure, modification, and denial of service.

Exploit code for Langflow  1.8.4 - Path Traversal to Remote Code Execution

Detailed information about CVE-2026-5027: CWE-22 Improper Limitation of a Pathname to a Restricted Directory in langflow-ai langflow affecting langflow-ai langf

CVE-2026-5027: CWE-22 Improper Limitation of a Pathname to a Restricted Directory in langflow-ai langflow - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-5027: CWE-22 Improper Limitation of a Pathname to a Restricted Directory in langflow-ai langflow

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