CVE-2023-24807

HIGH

Undici <5.19.1 - ReDoS

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0031
EPSS Percentile 53.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-1333 CWE-20
Status published
Products (2)
nodejs/undici < 5.19.1
npm/undici 0 - 5.19.1npm
Published Feb 16, 2023
Tracked Since Feb 18, 2026