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CVE-2021-23343 — Regular Expression Denial of Service in...

MEDIUM

Regular Expression Denial of Service in path-parse

Published August 10, 2021Updated January 14, 2025Source: osv

What Should I Do?

Address in Next Maintenance Window

Low exploitation probability (0.35%). Schedule for your next planned update.

Summary

Affected versions of npm package `path-parse` are vulnerable to Regular Expression Denial of Service (ReDoS) via splitDeviceRe, splitTailRe, and splitPathRe regular expressions. ReDoS exhibits polynomial worst-case time complexity.

Advisory Timeline

  • First published August 10, 2021 (1889 days ago).
  • Last revised January 14, 2025 — 1253 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update path-parse to 1.0.7 or later
npm install path-parse@1.0.7

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
path-parse
npm
All versions1.0.7

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-400
    Uncontrolled Resource ConsumptionMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.3 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

References

Frequently Asked Questions

What is CVE-2021-23343?
Regular Expression Denial of Service in path-parse This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.3/10).
How do I check if my project is affected by CVE-2021-23343?
CVE-2021-23343 affects path-parse. It has a 0.3% probability of exploitation within 30 days (EPSS score). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-23343 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
5.3

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

EPSS Score (30-day exploit probability)
0.35%
Higher than 57% of vulnerabilities

This is an above-median EPSS score — 57.1% of tracked vulnerabilities score at or below it, putting its exploitation likelihood in the upper half of the tracked corpus.

Also Known As

GHSA-hj48-42vr-x3v9

Related CVEs

More npm advisories

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