All the vulnerabilities related to the version 5.2.1 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.
@stryker-mutator/util vulnerable to Prototype Pollution
A prototype pollution in the function deepMerge of @stryker-mutator/util v8.6.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.