This affects the package dotty before 0.1.2. A type confusion vulnerability can lead to a bypass of CVE-2021-25912 when the user-provided keys used in the path parameter are arrays.
https://snyk.io/vuln/SNYK-JS-DOTTY-1577292
https://github.com/deoxxa/dotty/commit/88f61860dcc274a07a263c32cbe9d44c24ef02d7