---
id: CVE-2026-9673
title: >-
  Versions of the package json-2-csv from 3.15.0 and before 5.5.11 are
  vulnerable to CSV Injection via the preventCsvInjection option which can be
  bypassed
summary: >-
  Versions of the package json-2-csv from 3.15.0 and before 5.5.11 are
  vulnerable to CSV Injection via the preventCsvInjection option which can be
  bypassed. An attacker can inject formulas into CSV files, which execute when
  the files are o…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-1236
  - CWE-1236
published: '2026-05-28'
updated: '2026-07-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-9673'
references:
  - url: 'https://gist.github.com/whoamins/299745a2d36b482b44e9613b78e40613'
    label: report@snyk.io
  - url: 'https://github.com/mrodrig/json-2-csv/blob/main/src/json2csv.ts%23L410'
    label: report@snyk.io
  - url: >-
      https://github.com/mrodrig/json-2-csv/commit/0fdd0bb6d0273178cd940afc323ccbce19688229
    label: report@snyk.io
  - url: 'https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-17115116'
    label: report@snyk.io
  - url: 'https://security.snyk.io/vuln/SNYK-JS-JSON2CSV-14221326'
    label: report@snyk.io
tags:
  - nvd
epss: 0.00166
epssPercentile: 0.06288
ingestedAt: '2026-07-03T17:07:00.640Z'
---

## Overview

Versions of the package json-2-csv from 3.15.0 and before 5.5.11 are vulnerable to CSV Injection via the preventCsvInjection option which can be bypassed. An attacker can inject formulas into CSV files, which execute when the files are opened in spreadsheet applications.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.