CVE-2021-23384: URL Redirection to Untrusted Site (Open Redirect)

May 17, 2021 (updated May 25, 2021)

The package koa-remove-trailing-slashes is vulnerable to Open Redirect via the use of trailing double slashes in the URL when accessing the vulnerable endpoint (such as https://example.com//attacker.example/). The vulnerable code is in index.js::removeTrailingSlashes(), as the web server uses relative URLs instead of absolute URLs.

References

nvd.nist.gov/vuln/detail/CVE-2021-23384

Detect and mitigate CVE-2021-23384 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →