{"id":"CVE-2026-105698","revision":null,"records":[{"revision":"9f4897ed06014d988673de6670bf5b43","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-105698","aliases":[],"title":"Langflow: Cross-user flow access and vertex execution via deprecated /api/v1/build/{flow_id}/vertices endpoints","description":"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}/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.","state":0,"publishedAt":"2026-10-05T20:20:27.287+00:00","modifiedAt":"2026-10-06T13:58:36.614+00:00","affected":[{"ecosystem":"Vendor product","name":"langflow","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"langflow-ai\",\n                    \"product\": \"langflow\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.0.0, < 1.10.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"langflow-base","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"langflow-ai\",\n                    \"product\": \"langflow-base\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.10.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/langflow-ai/langflow/security/advisories/GHSA-gh98-4phw-6fmw","https://github.com/langflow-ai/langflow/pull/13153","https://github.com/langflow-ai/langflow/commit/fb3d6ec90b1e4d52eaa40915a64b1f86b6542f55","https://github.com/langflow-ai/langflow/releases/tag/v1.10.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105698","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-105698","identifiers":["CVE-2026-105698"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-daa70f0e05b540b28ec429806bdccfc4","complete":false,"records":13759,"lastAttemptAt":"2026-11-11T15:09:37.2726122+00:00","lastSuccessAt":"2026-11-11T15:09:37.269+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:09:37.269+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13582,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T14:57:42.7555955+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T14:57:42.7555955+00:00","lastSuccessAt":"2026-11-11T14:57:42.9331503+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:57:42.9331505+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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