Vulnerability · Published May 28, 2026 · Assigned by snyk
CVE-2026-9673
Medium 6.8
In plain English
A medium-severity security flaw in json-2-csv. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.2%top 94.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | json-2-csv | 5.5.11 | GHSA-g27c-q7cp-mhx6 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | json-2-csv | 3.15.0 – before 5.5.11 |
| n/a | org.webjars.npm:json-2-csv | 0 – before * |
Weakness: CWE-1236 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:P
References
- https://security.snyk.io/vuln/SNYK-JS-JSON2CSV-14221326
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-17115116
- https://github.com/mrodrig/json-2-csv/blob/main/src/json2csv.ts%23L410
- https://gist.github.com/whoamins/299745a2d36b482b44e9613b78e40613
- https://github.com/mrodrig/json-2-csv/commit/0fdd0bb6d0273178cd940afc323ccbce19688229