{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-12143/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-12T19:04:44.024Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-12143","@id":"https://www.cve.org/CVERecord?id=CVE-2026-12143","description":"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 atta"},"products":[{"@id":"cpe:2.3:a:form-data:form-data:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:form-data:form-data:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"Update to a fixed version: 2.5.6, 3.0.5, 4.0.6.","timestamp":"2026-06-12T19:04:44.024Z"}]}