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

• Lightning Flow Scanner Vulnerable to Code Injection via Unsafe Use of `new Function()` in APIVersion Rule - CVE-2025-67750
• BrowserStack Local vulnerable to Command Injection through logfile variable - CVE-2025-57283
• Elysia vulnerable to prototype pollution with multiple standalone schema validation - CVE-2025-66456
• parse is vulnerable to prototype pollution - CVE-2025-57324

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Tags:

npm

csvjson