{"id":"CVE-2026-105698","title":"Langflow is a tool for building and deploying AI-powered agents and workflows","summary":"Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.0.0 until 1.10.1, Langflow did not verify flow ownership in the deprecated POST /api/v1/build/{flow_id}/vertices and POST /api/v1/build/{flow_id}/verti…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-639","CWE-862"],"vendor":"langflow-ai","product":"langflow","affected":["langflow >= 1.0.0, < 1.10.1","langflow-base < 0.10.1"],"published":"2026-10-05","updated":"2026-10-05","sourceUpdated":"2026-10-05T21:16:35.257","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-105698","references":[{"url":"https://github.com/langflow-ai/langflow/commit/fb3d6ec90b1e4d52eaa40915a64b1f86b6542f55","label":"security-advisories@github.com"},{"url":"https://github.com/langflow-ai/langflow/pull/13153","label":"security-advisories@github.com"},{"url":"https://github.com/langflow-ai/langflow/releases/tag/v1.10.1","label":"security-advisories@github.com"},{"url":"https://github.com/langflow-ai/langflow/security/advisories/GHSA-gh98-4phw-6fmw","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-05T21:34:25.114Z","slug":"CVE-2026-105698","body":"## Overview\n\nLangflow is a tool for building and deploying AI-powered agents and workflows. From 1.0.0 until 1.10.1, Langflow did not verify flow ownership in the deprecated POST /api/v1/build/{flow_id}/vertices and POST /api/v1/build/{flow_id}/vertices/{vertex_id} handlers. Through version 1.7.1, an unauthenticated caller who knew another user's flow UUID could reach these handlers; from version 1.7.2 through 1.10.0, callers had to authenticate but needed no elevated privileges. Such a caller could cause retrieve_vertices_order to load and cache the private graph, enumerate its vertex identifiers, and use build_vertex to execute selected vertices and receive their results. build_graph_from_db_no_cache performed a primary-key lookup without an owner filter. This could disclose private flow structure, configured values, and selected outputs and could trigger victim-configured side effects and build-history records, although it did not expose the victim's variable-store credentials or permit modification of the stored flow. This issue is fixed in Langflow 1.10.1 and langflow-base 0.10.1.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}