CVE-2026-7528

IBM Langflow OSS versions 1.0.0–1.9.0 are vulnerable to an unauthenticated file upload that allows unlimited uploads via the deprecated /api/v1/upload/{flow_id} endpoint, enabling DoS through uncontrolled resource consumption and potential absolute path disclosure in API responses. The root cause...

EUVD-2026-32494

IBM Langflow OSS 1.0.0 through 1.9.1 could allow remote code execution due to improper validation of symbolic links during archive extraction...

Security Bulletin: Unauthenticated File Upload Vulnerability Allows Disk Space Exhaustion and Path Disclosure in Langflow OSS

Summary Unauthenticated users can upload unlimited files to the Langflow OSS server via the deprecated /api/v1/upload/flowid endpoint without authentication or validation, leading to potential disk space exhaustion DoS and information disclosure through absolute file path leakage in API responses...

Security Bulletin: Path Traversal Vulnerability in File Processing Components Allows Unauthorized File System Access and Potential Remote Code Execution

Summary A path traversal vulnerability exists in multiple Langflow OSS file processing components Docling, Docling Serve, Read File, NVIDIA Retriever Extraction, Video File, and Unstructured API that are based on BaseFileComponent. The vulnerability in the unpackbundle function allows attackers t...

CVE-2026-6542 Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id

IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flowid to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow...

CVE-2026-6542 Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id

IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flowid to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow...

Security Bulletin: upload filename directly from the multipart Content-Disposition header without sanitization

Summary Langflow OSS 1.2.0 - 1.8.4 are affected by a critical arbitrary file write vulnerability in the files endpoint due to improper handling of uploaded filenames. The application extracts the filename directly from the multipart Content-Disposition header without sanitization and uses unsafe...

Security Bulletin: Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id

Summary Langflow OSS is affected by an insecure direct object reference vulnerability in its Monitor API due to missing authorization checks. Although these endpoints require authentication, they fail to verify ownership of the provided flowid, allowing any authenticated user to access or...