CVE-2021-4299

Name: CVE-2021-4299
Creator: NVD / NIST
Published: 2023-01-02T08:15:10.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.93%

Last modified Jun 17, 2026

CVE-2021-4299 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability classified as problematic was found in cronvel string-kit up to 0.12.7. This vulnerability affects the function naturalSort of the file lib/naturalSort.js. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

A vulnerability classified as problematic was found in cronvel string-kit up to 0.12.7. This vulnerability affects the function naturalSort of the file lib/naturalSort.js. The manipulation leads to inefficient regular expression complexity. The attack can be initiated remotely. Upgrading to version 0.12.8 is able to address this issue. The name of the patch is 9cac4c298ee92c1695b0695951f1488884a7ca73. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-217180.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.93%

55.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1333

Affected Software

Vendor	Product	Versions
String Kit Project	String Kit	< 0.12.8

References

https://github.com/cronvel/string-kit/commit/9cac4c298ee92c1695b0695951f1488884a7ca73Patch, Third Party Advisory
https://github.com/cronvel/string-kit/releases/tag/v0.12.8Release Notes, Third Party Advisory
https://vuldb.com/?ctiid.217180Third Party Advisory
https://vuldb.com/?id.217180Third Party Advisory
https://github.com/cronvel/string-kit/commit/9cac4c298ee92c1695b0695951f1488884a7ca73Patch, Third Party Advisory
https://github.com/cronvel/string-kit/releases/tag/v0.12.8Release Notes, Third Party Advisory
https://vuldb.com/?ctiid.217180Third Party Advisory
https://vuldb.com/?id.217180Third Party Advisory

Timeline

Published: Jan 2, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4299?

How severe is CVE-2021-4299?

CVE-2021-4299 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4299?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4299?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST