MEDIUM6.8

GHSA-g27c-q7cp-mhx6

json-2-csv vulnerable to CSV Injection via the preventCsvInjection optio

Quick fix

GHSA-g27c-q7cp-mhx6 — json-2-csv: upgrade to the fixed version with the command below.

npm install json-2-csv@5.5.11

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

npm/json-2-csv

Introduced in: 3.15.0Fixed in: 5.5.11

Fixnpm install json-2-csv@5.5.11

References

https://nvd.nist.gov/vuln/detail/CVE-2026-9673[ADVISORY]
https://github.com/mrodrig/json-2-csv/commit/0fdd0bb6d0273178cd940afc323ccbce19688229[WEB]
https://gist.github.com/whoamins/299745a2d36b482b44e9613b78e40613[WEB]
https://github.com/mrodrig/json-2-csv[PACKAGE]
https://github.com/mrodrig/json-2-csv/blob/main/src/json2csv.ts%23L410[WEB]
https://security.snyk.io/vuln/SNYK-JS-JSON2CSV-14221326[WEB]