{"action":"Upgrade http-proxy-middleware to 3.0.7 or later.","affected":[{"fixed":"3.0.7","introduced":"3.0.4"},{"fixed":"4.1.1","introduced":"4.0.0"}],"component":"http-proxy-middleware","cve_ids":["CVE-2026-55603"],"ecosystem":"npm","epss":0.00286,"exploited":false,"fixed_versions":["3.0.7","4.1.1"],"ghsa_id":"GHSA-gcq2-9pq2-cxqm","id":"tcs_01M5KFRCBTRX2DB8R2EZ3ACEY3","modified_at":"2026-06-18T13:26:30.358166Z","published_at":"2026-06-18T13:06:21Z","references":["https://osv.dev/vulnerability/GHSA-gcq2-9pq2-cxqm","https://github.com/chimurai/http-proxy-middleware/security/advisories/GHSA-gcq2-9pq2-cxqm","https://github.com/chimurai/http-proxy-middleware"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-gcq2-9pq2-cxqm","url":"https://osv.dev/vulnerability/GHSA-gcq2-9pq2-cxqm"}],"summary":"http-proxy-middleware: multipart/form-data field injection via unescaped CRLF in `fixRequestBody`"}