csvjson vulnerable to prototype injection

Description

A Prototype Pollution vulnerability in the toCsv function of csvjson versions thru 5.1.0 allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

Recommendation

No fix is available yet. Followings are affected versions:

• <= 5.1.0

References

• GHSA-xq4f-3jxp-qv6m
• CVE-2025-57318
• CWE-1321
• CAPEC-310
• OWASP 2021-A6

Related Issues

• dref is vulnerable to prototype pollution - CVE-2025-26278
• expr-eval vulnerable to Prototype Pollution - expr-eval - CVE-2025-13204
• Vega vulnerable to Cross-site Scripting via RegExp.prototype[@@replace] - CVE-2025-27793
• Vega vulnerable to Cross-site Scripting via RegExp.prototype[@@replace] - vega - CVE-2025-27793

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Tags:

npm

csvjson