What’s Vulnerable › Vulnerabilities

CVE-2022-37598

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-10-20 · updated 2026-06-17
• Weakness: CWE-1321

Description

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.

Affected products

• Uglifyjs Project Uglifyjs: 3.13.2

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
• 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

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