CVE-2024-36574

MEDIUMNVD 6.36.3—Elevated

6.3

A Prototype Pollution issue in flatten-json 1.0.1 allows an attacker to execute arbitrary code via module.exports.unflattenJSON (flatten-json/index.js:42)

CVSS v3: 6.3
EG Score: 6.3(medium)
EPSS: 37.5%
KEV: Not listed

Published

June 17, 2024

Last Modified

April 15, 2026

References (2)

cve@mitrehttps://gist.github.com/mestrtee/d5a0c93459599f77557b5bbe78b57325
af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/mestrtee/d5a0c93459599f77557b5bbe78b57325

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
npm	@allanlancioni/flatten-json	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

npm(1)

Package	Vulnerable range	Fixed in	Dependents
@allanlancioni/flatten-json	—	—	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-1321Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-22 21:16 UTCepss_batch

Frequently asked(5)

What is CVE-2024-36574?

CVE-2024-36574 is a medium vulnerability published on June 17, 2024. A Prototype Pollution issue in flatten-json 1.0.1 allows an attacker to execute arbitrary code via module.exports.unflattenJSON (flatten-json/index.js:42)

When was CVE-2024-36574 disclosed?

CVE-2024-36574 was first published in the National Vulnerability Database on June 17, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-36574 actively exploited?

CVE-2024-36574 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-36574?

CVE-2024-36574 has a CVSS v3 base score of 6.3 (NVD).

How do I remediate CVE-2024-36574?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-36574, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-36574

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CVE-2024-36574

📅 Published

🔄 Last Modified

🔗 References (2)