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MEDIUM · 5.9

CVE-2021-43307

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the semver-regex npm package, when an attacker is able to supply arbitrary input to the test() method

Vulnerability Description

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the semver-regex npm package, when an attacker is able to supply arbitrary input to the test() method

CVSS Score

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
Semver-Regex ProjectSemver-Regex< 3.1.4

Related Weaknesses (CWE)

CWE-1333

References

FAQ

What is CVE-2021-43307?

CVE-2021-43307 is a vulnerability with a CVSS score of 5.9 (MEDIUM). An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the semver-regex npm package, when an attacker is able to supply arbitrary input to the test() method

How severe is CVE-2021-43307?

CVE-2021-43307 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-43307?

Check the references section above for vendor advisories and patch information. Affected products include: Semver-Regex Project Semver-Regex.