CVE-2026-7787 Unauthenticated Session History Access via Public Flow Execution

IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references...

CVE-2026-7787

CVE-2026-7787 affects Langflow OSS versions 1.0.0–1.9.1. A session ID namespace bypass in the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint allows unauthenticated attackers to read or modify chat history by overriding the session_id used during flow execution when a PUBLIC flow includes a...