CVE-2026-85063

node-csv is a full-featured CSV parser with a simple API that is tested against large datasets. Prior to 7.0.2, csv-parse with the columns and groupcolumnsbyname options enabled treats a duplicate proto header as an existing property in packages/csv-parse/lib/api/index.js, assigns an...

CVE-2026-85063

A flaw was found in node-csv, specifically within its csv-parse component. When configured with columns and groupcolumnsbyname options, a remote attacker can craft a malicious CSV header to manipulate the proto property. This allows the injection of attacker-controlled values into the parsed...

CVE-2026-85063

node-csv is a full-featured CSV parser with a simple API that is tested against large datasets. Prior to 7.0.2, csv-parse with the columns and groupcolumnsbyname options enabled treats a duplicate proto header as an existing property in packages/csv-parse/lib/api/index.js, assigns an...

CVE-2026-85063

node-csv (csv-parse) versions prior to 7.0.2 are vulnerable to a prototype replacement issue when the columns and group_columns_by_name options are enabled. In packages/csv-parse/lib/api/index.js, a duplicate __proto__ header in a CSV file is treated as an existing property, allowing an attacker-...

CVE-2026-85063 node-csv: Prototype replacement still reachable via columns path

node-csv is a full-featured CSV parser with a simple API that is tested against large datasets. Prior to 7.0.2, csv-parse with the columns and groupcolumnsbyname options enabled treats a duplicate proto header as an existing property in packages/csv-parse/lib/api/index.js, assigns an...