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Vulnerability record · public intelligence
CVE-2021-4299
MEDIUM

string-kit Inefficient Regular Expression Complexity vulnerability

Published Jan 2, 2023 · Updated Nov 3, 2026

Severity · CVSSMEDIUM · Not scored
Known exploitationNot listed
EPSS / likelihood1.01%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

string-kit Inefficient Regular Expression Complexity vulnerability

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

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 can 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.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

FIRST-EPSSCVE-LIST-V5
SSVC priority
LOW
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. vuldb.com ↗
  2. vuldb.com ↗
  3. Patch commit ↗
  4. Source repository ↗

Record history

Published Jan 2, 2023 · Last refreshed Nov 3, 2026