https://docs.github.com/en/code-security/dependabot/dependabot-alerts/about-dependabot-alerts Dependabot alerts tell you that your code depends on a package that is insecure.
If your code depends on a package with a security vulnerability, this can cause a range of problems for your project or the people who use it. You should upgrade to a secure version of the package as soon as possible. If your code uses malware, you need to replace the package with a secure alternative.