CVE-2026-12143

npm/form-data CVE-2026-12143: high 7.5

form-data: CRLF injection in form-data via unescaped multipart field names and filenames

Action: Upgrade form-data to 2.5.6 or later.

npm i form-data@2.5.6

npm i form-data@3.0.5

npm i form-data@4.0.6

Affected

Fixed versions

Sources

• osv: GHSA-hmw2-7cc7-3qxx
• https://github.com/form-data/form-data/security/advisories/GHSA-hmw2-7cc7-3qxx
• https://nvd.nist.gov/vuln/detail/CVE-2026-12143
• https://github.com/form-data/form-data/commit/64190db548c0179e37206858e39f27cf513e9435
• https://github.com/form-data/form-data/commit/be3f3cf553978bac15a5182f1f3c3d2d38ccf229
• https://github.com/form-data/form-data/commit/c7133499c2ee1b80c678e411244f4442bf902045
• https://github.com/form-data/form-data
• https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data
• https://www.npmjs.com/package/form-data

CVE-2026-12143 · published 2026-06-15T17:26:26Z · modified 2026-09-10T03:50:49.785679067Z · JSON