## High-Severity DoS Flaw CVE-2024-45590 Exposes Widespread body-parser Node.js Middleware
A high-severity denial-of-service (DoS) vulnerability has been confirmed in a foundational piece of the Node.js ecosystem. The flaw, tracked as CVE-2024-45590, exists in versions of the `body-parser` middleware prior to 1.20.3. This library is a critical, widely-used component for parsing incoming request data in Express.js applications and countless other Node.js projects. The vulnerability allows a malicious actor to craft a specific payload that, when sent to a vulnerable server with URL encoding enabled, can flood the system with requests, leading to a denial of service.

The vulnerability specifically targets the `body-parser` npm package, with version 1.13.3 explicitly identified as vulnerable in the advisory. The library's function as core middleware means the exposure is not limited to a single application but potentially affects any service that has not updated this dependency. The path to exploitation is clear: an attacker needs only to send a stream of specially crafted requests to a server running an outdated version, exploiting the parsing logic to consume excessive resources.

This discovery places immediate pressure on development and security teams to audit their dependency trees. Given `body-parser`'s ubiquitous role in the Node.js landscape, the potential attack surface is significant, spanning web applications, APIs, and backend services. The patch is available in version 1.20.3 and later, making remediation a straightforward update for most projects. However, the risk remains high for legacy systems, unmaintained applications, or projects with locked dependencies, where this flaw could be leveraged to take critical services offline.
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- **Source**: GitHub Issues
- **Sector**: The Lab
- **Tags**: CVE-2024-45590, Node.js, Denial of Service, npm, Express.js
- **Credibility**: unverified
- **Published**: 2026-03-31 06:27:14
- **ID**: 42519
- **URL**: https://whisperx.ai/en/intel/42519