Posted by Ron E on Sep 03Next.js 16.4.0-canary.13 contains a DNS rebinding TOCTOU Server-Side Request Forgery vulnerability in the Image Optimizer's fetchExternalImage() functionality. Next.js attempts to prevent requests to private network resources by resolving the supplied hostname and checking the resulting addresses using isPrivateIp(): const records = await lookup(hostname, { family: 0, all: true, hints: ALL, }) const privateIps = records.map((record)...