How severe is CVE-2021-23343?

CVE-2021-23343 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2021-23343 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23343?

CVE-2021-23343 affects Path-parse Project Path-parse. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-23343?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-23343 published?

CVE-2021-23343 was published on 2021-05-04 and last updated on 2026-06-17.

CVE-2021-23343

CVE-2021-23343 is a medium-severity vulnerability in Path-parse Project Path-parse with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Path-parse Project Path-parse
Published: 2021-05-04
Last modified: 2026-06-17

Description

All versions of 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.

Frequently asked questions

What is CVE-2021-23343?: All versions of 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.
How severe is CVE-2021-23343?: CVE-2021-23343 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2021-23343 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23343?: CVE-2021-23343 affects Path-parse Project Path-parse. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23343?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-23343 published?: CVE-2021-23343 was published on 2021-05-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:path-parse_project:path-parse:*:*:*:*:*:node.js:*:*