Vulnerability in Json-2-Csv

CVE-2026-9673

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (13.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-9673: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.001

Affected products

  • Json-2-Csv — versions 3.15.0
  • Org.webjars.npm:json-2-Csv — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-9673?
CVE-2026-9673 is a medium-severity vulnerability in Json-2-Csv, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 6.8/10. Published 2026-05-28.
How severe is CVE-2026-9673?
Medium severity. CVSS v3 base score is 6.8 out of 10.