{"id":"CVE-2025-46653","aliases":["GHSA-75v8-2h7p-7m2m"],"url":"https://o3.security/vulnerability/CVE-2025-46653","summary":"Formidable relies on hexoid to prevent guessing of filenames for untrusted executable content","details":"Formidable (aka node-formidable) 2.1.0 through 3.x before 3.5.3 relies on hexoid to prevent guessing of filenames for untrusted executable content; however, hexoid is documented as not \"cryptographically secure.\" (Also, there is a scenario in which only the last two characters of a hexoid string need to be guessed, but this is not often relevant.) NOTE: this does not imply that, in a typical use case, attackers will be able to exploit any hexoid behavior to upload and execute their own content.","published":"2025-04-26T00:00:00Z","modified":"2026-07-15T01:49:15.612477322Z","cvss":{"score":3.1,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"formidable","fixedVersion":"3.5.3"},{"ecosystem":"npm","name":"formidable","fixedVersion":"2.1.3"}],"fix":{"url":"https://github.com/node-formidable/formidable/commit/022c2c5577dfe14d2947f10909d81b03b6070bf5","label":"node-formidable/formidable@022c2c5"},"references":[{"type":"WEB","url":"https://github.com/node-formidable/formidable/blob/d0fbec13edc8add54a1afb9ce1a8d3db803f8d47/CHANGELOG.md?plain=1#L10"},{"type":"WEB","url":"https://github.com/zast-ai/vulnerability-reports/blob/main/formidable/file_upload/report.md"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/46xxx/CVE-2025-46653.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-46653"},{"type":"FIX","url":"https://github.com/node-formidable/formidable/commit/022c2c5577dfe14d2947f10909d81b03b6070bf5"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:15.612477322Z"}}