CVE-2022-37598

CRITICALNVD 9.89.8—Elevated

9.8

Prototype pollution vulnerability in function DEFNODE in ast.js in mishoo UglifyJS 3.13.2 via the name variable in ast.js. NOTE: the vendor considers this an invalid report.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 75.0%
KEV: Not listed

Published

October 20, 2022

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://github.com/mishoo/UglifyJS/blob/352a944868b09c9ce3121a49d4a0bf0afe370a35/lib/ast.js#L46
cve@mitrehttps://github.com/mishoo/UglifyJS/blob/352a944868b09c9ce3121a49d4a0bf0afe370a35/lib/ast.js#L79
cve@mitrehttps://github.com/mishoo/UglifyJS/issues/5699
cve@mitrehttps://github.com/mishoo/UglifyJS/issues/5721#issuecomment-1292849604
af854a3a-2127-422b-91ae-364da2661108https://github.com/mishoo/UglifyJS/blob/352a944868b09c9ce3121a49d4a0bf0afe370a35/lib/ast.js#L46
af854a3a-2127-422b-91ae-364da2661108https://github.com/mishoo/UglifyJS/blob/352a944868b09c9ce3121a49d4a0bf0afe370a35/lib/ast.js#L79
af854a3a-2127-422b-91ae-364da2661108https://github.com/mishoo/UglifyJS/issues/5699
af854a3a-2127-422b-91ae-364da2661108https://github.com/mishoo/UglifyJS/issues/5721#issuecomment-1292849604

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 13× 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 20:11 UTCepss_batch
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Frequently asked(5)

What is CVE-2022-37598?

CVE-2022-37598 is a critical vulnerability published on October 20, 2022. Prototype pollution vulnerability in function DEFNODE in ast.js in mishoo UglifyJS 3.13.2 via the name variable in ast.js. NOTE: the vendor considers this an invalid report.

When was CVE-2022-37598 disclosed?

CVE-2022-37598 was first published in the National Vulnerability Database on October 20, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-37598 actively exploited?

CVE-2022-37598 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-37598?

CVE-2022-37598 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-37598?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-37598, 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.

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CVE-2022-37598

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-37598?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)