CVE-2022-37599

loader-utils is vulnerable to Regular Expression Denial of Service (ReDoS)

A regular expression denial of service (ReDoS) flaw was found in Function interpolateName in interpolateName.js in webpack loader-utils via the resourcePath variable in interpolateName.js. A badly or maliciously formed string could be used to send crafted requests that cause a system to crash or take a disproportional amount of time to process. This issue has been patched in versions 1.4.2, 2.0.4 and 3.2.1.

Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service. Typical impact: denial of service.

CVE-2022-37599 has a CVSS score of 7.5 (High). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.4.2, 2.0.4, 3.2.1); upgrading removes the vulnerable code path.

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1. What is CVE-2022-37599? CVE-2022-37599 is a high-severity uncontrolled resource consumption vulnerability in loader-utils (npm), affecting versions >= 1.0.0, < 1.4.2. It is fixed in 1.4.2, 2.0.4, 3.2.1. Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service.
2. How severe is CVE-2022-37599? CVE-2022-37599 has a CVSS score of 7.5 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of loader-utils are affected by CVE-2022-37599? loader-utils (npm) versions >= 1.0.0, < 1.4.2 is affected.
4. Is there a fix for CVE-2022-37599? Yes. CVE-2022-37599 is fixed in 1.4.2, 2.0.4, 3.2.1. Upgrade to this version or later.
5. Is CVE-2022-37599 exploitable, and should I be worried? Whether CVE-2022-37599 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2022-37599 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2022-37599?
   • Upgrade loader-utils to 1.4.2 or later
   • Upgrade loader-utils to 2.0.4 or later
   • Upgrade loader-utils to 3.2.1 or later

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