{"action":"Upgrade langflow to 1.0.19 or later.","affected":[{"fixed":"1.0.19","introduced":"0"}],"component":"langflow","cve_ids":["CVE-2026-55446"],"ecosystem":"PyPI","epss":0.00581,"exploited":false,"fixed_versions":["1.0.19"],"ghsa_id":"GHSA-qwqc-p3q8-wcg9","id":"tcs_01M5KFWSKT5PX3X4BE2JDGRR72","modified_at":"2026-06-26T00:11:24.844850404Z","published_at":"2026-06-19T21:17:37Z","references":["https://osv.dev/vulnerability/GHSA-qwqc-p3q8-wcg9","https://github.com/langflow-ai/langflow/security/advisories/GHSA-qwqc-p3q8-wcg9","https://github.com/langflow-ai/langflow/pull/3923","https://github.com/langflow-ai/langflow","https://github.com/langflow-ai/langflow/blob/v1.0.18/src/backend/base/langflow/api/v1/files.py#L40"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-qwqc-p3q8-wcg9","url":"https://osv.dev/vulnerability/GHSA-qwqc-p3q8-wcg9"}],"summary":"Langflow: Unauthenticated DoS through multipart form boundary file upload"}