What’s Vulnerable › Vulnerabilities

CVE-2017-16138: mime Regular Expression Denial of Service when MIME lookup performed on untrusted user input

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-06-07 · updated 2026-10-07
• Weakness: CWE-400

Description

The mime module < 1.4.1, 2.0.1, 2.0.2 is vulnerable to regular expression denial of service when a mime lookup is performed on untrusted user input.

Affected products

• HackerOne mime node module: before 1.4.1; from 2.0.1 before 2.0.3 — fixed in 1.4.1, 2.0.3
• Npm Mime: from 2.0.0 before 2.0.3; before 1.4.1 — fixed in 2.0.3, 1.4.1

How to fix

Upgrade to a fixed version: HackerOne mime node module 1.4.1, 2.0.3; Npm Mime 2.0.3, 1.4.1. Check the vendor advisory for mitigations.

References

• https://github.com/broofa/node-mime/issues/167
• https://nodesecurity.io/advisories/535
• https://github.com/broofa/node-mime/issues/167
• https://nodesecurity.io/advisories/535

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