CVE-2022-37598

9.8 criticalEPSS 1.9%

Critical (9.8) in uglifyjs project uglifyjs. EPSS 1.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.9% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
CWE: CWE-1321
Published: 2022-10-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

uglifyjs_project:uglifyjs

References

https://github.com/mishoo/UglifyJS/blob/352a944868b09c9ce3121a49d4a0bf0afe370a35/lib/ast.js#L46
https://github.com/mishoo/UglifyJS/blob/352a944868b09c9ce3121a49d4a0bf0afe370a35/lib/ast.js#L79
https://github.com/mishoo/UglifyJS/issues/5699
https://github.com/mishoo/UglifyJS/issues/5721#issuecomment-1292849604
https://github.com/mishoo/UglifyJS/blob/352a944868b09c9ce3121a49d4a0bf0afe370a35/lib/ast.js#L46

Check your stack JSON