Description
Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. Feathers socket handler did not catch invalid string conversion errors like `const message = ${{ toString: '' }}` which would cause the NodeJS process to crash when sending an unexpected Socket.io message like `socket.emit('find', { toString: '' })`. A fix has been released in versions 5.0.8 and 4.5.18. Users are advised to upgrade. There is no known workaround for this vulnerability.
Remediation
References
https://github.com/feathersjs/feathers/pull/3242
https://github.com/feathersjs/feathers/pull/3241
https://github.com/feathersjs/feathers/blob/crow/CHANGELOG.md#4518-2023-07-19
https://github.com/feathersjs/feathers/security/advisories/GHSA-hhr9-rh25-hvf9
https://github.com/feathersjs/feathers/blob/dove/CHANGELOG.md#508-2023-07-19