CVE-2026-90982

CVE-2026-90982 affects the @fastify/static plugin (versions before 10.1.4 ). On case-insensitive filesystems such as Windows or the default macOS volume, a mismatch between the case-sensitive route matcher and the case-insensitive filesystem allows an unauthenticated attacker to bypass route guar...

CVE-2026-90982 @fastify/static vulnerable to route guard bypass via path case-folding

@fastify/static is a Fastify plugin that serves static files from a configured root directory. In versions before 10.1.4, on a case-insensitive filesystem such as Windows or the default macOS volume, a route guard or allowedPath restriction can be bypassed by altering the letter case of a path...