json-2-csv vulnerable to CSV Injection via the preventCsvInjection optio
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | json-2-csv | >= 3.15.0, < 5.5.11 | 5.5.11 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-9673
- https://github.com/mrodrig/json-2-csv/commit/0fdd0bb6d0273178cd940afc323ccbce19688229
- https://gist.github.com/whoamins/299745a2d36b482b44e9613b78e40613
- https://github.com/mrodrig/json-2-csv
- https://github.com/mrodrig/json-2-csv/blob/main/src/json2csv.ts%23L410
- https://security.snyk.io/vuln/SNYK-JS-JSON2CSV-14221326
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N- Weakness (CWE)
CWE-1236- Platform
- npm
- Package
json-2-csv- Disclosed
- 28.05.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-g27c-q7cp-mhx6 - CC BY 4.0
Vulnerability history: json-2-csv
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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