Vulnerability CVE-2023-24807
Published: 2023-02-16

Description:
Undici is an HTTP/1.1 client for Node.js. Prior to version 5.19.1, the `Headers.set()` and `Headers.append()` methods are vulnerable to Regular Expression Denial of Service (ReDoS) attacks when untrusted values are passed into the functions. This is due to the inefficient regular expression used to normalize the values in the `headerValueNormalize()` utility function. This vulnerability was patched in v5.19.1. No known workarounds are available.

 References:
https://github.com/nodejs/undici/releases/tag/v5.19.1
https://github.com/nodejs/undici/security/advisories/GHSA-r6ch-mqf9-qc9w
https://hackerone.com/bugs?report_id=1784449
https://github.com/nodejs/undici/commit/f2324e549943f0b0937b09fb1c0c16cc7c93abdf
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