NPM: fastify vulnerable to Denial of Service via unhandled exception on HTTP/2 trailer responses

NPM: fastify vulnerable to Denial of Service via unhandled exception on HTTP/2 trailer responses vulnerability discovered by ? in WordPress Npm fastify versions 5.12.5...

CVE-2026-92081

fastify (a Node.js web framework) versions before 5.12.5 are vulnerable to a Denial of Service when a route registers a response trailer via reply.trailer() and is served over HTTP/2 . The root cause is that fastify unconditionally sets the Transfer-Encoding: chunked header, which is forbidden on...