All the vulnerabilities related to the version 1.0.0 of the package
semver vulnerable to Regular Expression Denial of Service
Versions of the package semver before 7.5.2 on the 7.x branch, before 6.3.1 on the 6.x branch, and all other versions before 5.7.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the function new Range, when untrusted user data is provided as a range.
semver-regex Regular Expression Denial of Service (ReDOS)
npm semver-regex is vulnerable to Inefficient Regular Expression Complexity
Regular expression denial of service in semver-regex
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