{"id":"CVE-2026-10547","details":"IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate ownership in the deprecated POST /api/v1/build/{flow_id}/vertices endpoint, allowing an authenticated user to inject arbitrary graph data into a shared cache for any flow. This may result in cross-user cache pollution, unauthorized workflow execution, or denial of service.","modified":"2026-08-08T09:31:00.187236Z","published":"2026-08-05T19:17:19.847Z","references":[{"type":"ADVISORY","url":"https://www.ibm.com/support/pages/node/7282647"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/langflow-ai/langflow","events":[{"introduced":"24d9e86885b877ea3e9d03cbc50b963765489721"},{"fixed":"f307634e708a3247d23276943c4b848b15e19e84"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.0.0"},{"fixed":"1.11.0"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-10547.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"}]}