vulnti.work

form-data is a library for creating readable multipart/form-data streams. In versions through 4.0.5, the `field` argument to `FormData#append` and the `filename` option are concatenated verbatim into…

High CVSS 7.5
CVECVE-2026-12143
First seen2026-07-16 12:31 UTC
Disclosed2026-06-12 19:16 UTC
Last updated2026-07-16 12:31 UTC
Channel statusauto

Summary

form-data is a library for creating readable multipart/form-data streams. In versions through 4.0.5, the `field` argument to `FormData#append` and the `filename` option are concatenated verbatim into the `Content-Disposition` header without escaping carriage return (CR), line feed (LF), or double-quote (") characters. An application that passes attacker-controlled data as a field name or filename (for example, an API gateway that turns JSON object keys into multipart field names) allows the att…

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Lint boundary warnings (3)

The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).

  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://cwe.mitre.org/data/definitions/93.html
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://www.npmjs.com/package/form-data

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD