CVE-2025-57350

Description

The csvtojson package, a tool for converting CSV data to JSON with customizable parsing capabilities, contains a prototype pollution vulnerability in versions prior to 2.0.10. This issue arises due to insufficient sanitization of nested header names during the parsing process in the parser_jsonarray component. When processing CSV input containing specially crafted header fields that reference prototype chains (e.g., using __proto__ syntax), the application may unintentionally modify properties of the base Object prototype. This vulnerability can lead to denial of service conditions or unexpected behavior in applications relying on unmodified prototype chains, particularly when untrusted CSV data is processed. The flaw does not require user interaction beyond providing a maliciously constructed CSV file.

How to fix CVE-2025-57350

To remediate CVE-2025-57350, upgrade the affected package to a fixed version below.

• —upgrade to 2.0.13 or later

Is CVE-2025-57350 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 2.0.13

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-57350
• PATCHgithub.com/Keyang/node-csvtojson
• WEBgithub.com/Keyang/node-csvtojson/commit/4caeebd13b67be63282a7bbed3ca0cf9813f4bfc
• WEBgithub.com/Keyang/node-csvtojson/issues/498
• WEB