CVE-2026-54335

Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. In 5.0.44 and earlier, the .mergetarget, source utility exported by @feathersjs/commons recursively merges source into target by iterating Object.keyssource. When source was produced by...

Prototype pollution in @feathersjs/commons _.merge via JSON-parsed __proto__

Impact The .mergetarget, source utility exported by @feathersjs/commons recursively merges source into target by iterating Object.keyssource. When source was produced by JSON.parse and contains a proto or constructor / prototype key, that key is returned as an own-enumerable property. The recursi...

GHSA-28XV-PH75-77WH Prototype pollution in @feathersjs/commons _.merge via JSON-parsed __proto__

Impact The .mergetarget, source utility exported by @feathersjs/commons recursively merges source into target by iterating Object.keyssource. When source was produced by JSON.parse and contains a proto or constructor / prototype key, that key is returned as an own-enumerable property. The recursi...