CVE-2025-57318: A Prototype Pollution vulnerability in the toCsv function of csvjson versions thru 5.1.0 allows attackers to i

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HIGH 7.5REMOTEUPGRADE

CVE-2025-57318 is a high-severity flaw (CVSS 7.5) affecting csvjson. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-1321
Published	2025-09-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pradeep-mishra

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-09-24 21:15 UTCPublished CVE record published
2026-06-17 09:43 UTCUpdated Record last modified

pradeep-mishra csvjson UPGRADE

Affected: <= 5.1.0

Fixed in: newer than 5.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls csvjson

2. UPGRADE to newer than 5.1.0

npm install csvjson@">5.1.0"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-57318?

csvjson: upgrade to newer than 5.1.0. Exact commands for each OS are on this page.

Is CVE-2025-57318 being exploited?

CVE-2025-57318 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-57318 affect?

CVE-2025-57318 affects csvjson. Severity is high (CVSS 7.5). 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.

How urgent is CVE-2025-57318?

Priority 40/100. High severity; Remotely exploitable, no login, no user action

References

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