GHSA-4pcg-wr6c-h9cq fastify/websocket vulnerable to uncaught exception via crash on malformed packet

• npm @fastify/websocket: >= 5.0.0, < 5.0.1 → fixed in 5.0.1 • npm @fastify/websocket: >= 6.0.0, < 7.1.1 → fixed in 7.1.1 • npm fastify-websocket: <= 4.3.0 (no fix yet)

Impact Any application using @fastify/websocket could crash if a specific, malformed packet is sent. All versions of fastify-websocket are also impacted. That module is deprecated, so it will not be patched. Patches This has been patched in v7.1.1 (fastify v4) and v5.0.1 (fastify v3). Workarounds No known workaround is available. However, it should be possible to attach the error handler manually. The recommended path is upgrading to the patched versions. Credits marcolanaro for finding and patching this vulnerability For more information If you have any questions or comments about this advisory: • Open an issue in @fastify/websocket • Email us at [email protected]