CVE-2024-4067

MEDIUM

micromatch <4.0.8 - ReDoS

Title source: llm
STIX 2.1

Description

The NPM package `micromatch` prior to 4.0.8 is vulnerable to Regular Expression Denial of Service (ReDoS). The vulnerability occurs in `micromatch.braces()` in `index.js` because the pattern `.*` will greedily match anything. By passing a malicious payload, the pattern matching will keep backtracking to the input while it doesn't find the closing bracket. As the input size increases, the consumption time will also increase until it causes the application to hang or slow down. There was a merged fix but further testing shows the issue persists. This issue should be mitigated by using a safe pattern that won't start backtracking the regular expression due to greedy matching. This issue was fixed in version 4.0.8.

Scores

CVSS v3 5.3
EPSS 0.0013
EPSS Percentile 31.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-1333
Status published
Products (2)
jonschlinkert/micromatch < 4.0.8
npm/micromatch 0 - 4.0.8npm
Published May 14, 2024
Tracked Since Feb 18, 2026