{"id":"CVE-2020-7699","aliases":["GHSA-9wcg-jrwf-8gg7","SNYK-JS-EXPRESSFILEUPLOAD-595969"],"url":"https://o3.security/vulnerability/CVE-2020-7699","summary":"Prototype Pollution in express-fileupload","details":"This affects the package express-fileupload before 1.1.8. If the parseNested option is enabled, sending a corrupt HTTP request can lead to denial of service or arbitrary code execution.","published":"2020-07-30T09:15:11.373Z","modified":"2026-07-09T12:32:53.283059Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"npm","name":"express-fileupload","fixedVersion":"1.1.9"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20200821-0003/"},{"type":"EVIDENCE","url":"https://github.com/richardgirges/express-fileupload/issues/236"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JS-EXPRESSFILEUPLOAD-595969"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T12:32:53.283059Z"}}