{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-5079/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-15T16:00:43.955Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-5079","@id":"https://www.cve.org/CVERecord?id=CVE-2026-5079","description":"Impact: multer versions 1.0.0 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service via deeply nested field names in multipart form data. The append-field dependency parses bracket notation in field names with no limit on nesting depth, allowing an attacker to force allocation of deeply nested object structures that consume CPU and memory. A single HTTP request with a crafted multipart body is sufficient to exploit this.\n\nPatches: Users should upgrade to multer 2.2.0 (2.x line) o"},"products":[{"@id":"cpe:2.3:a:multer:multer:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:multer:multer:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"Update to a fixed version: 2.2.0, 3.0.0-alpha.2.","timestamp":"2026-06-15T16:00:43.955Z"}]}