{"action":"Upgrade langflow to 1.9.1 or later.","affected":[{"fixed":"1.9.1","introduced":"0"}],"component":"langflow","cve_ids":["CVE-2026-55450"],"ecosystem":"PyPI","epss":0.0119,"exploited":false,"fixed_versions":["1.9.1"],"ghsa_id":"GHSA-x223-p2gf-v735","id":"tcs_01M5KG34RDRYC571EPAGTJ2M4P","modified_at":"2026-06-26T00:11:14.174707076Z","published_at":"2026-06-17T18:43:12Z","references":["https://osv.dev/vulnerability/GHSA-x223-p2gf-v735","https://github.com/langflow-ai/langflow/security/advisories/GHSA-x223-p2gf-v735","https://github.com/langflow-ai/langflow/pull/12831","https://github.com/langflow-ai/langflow"],"severity":{"label":"critical","score":9.3},"sources":[{"source":"osv","source_id":"GHSA-x223-p2gf-v735","url":"https://osv.dev/vulnerability/GHSA-x223-p2gf-v735"}],"summary":"Langflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak"}