{"schemaVersion":3,"id":"CVE-2026-25223","aliases":["GHSA-jx2c-rxcm-jvmq"],"status":"published","duplicateOf":null,"title":null,"description":"Fastify is a fast and low overhead web framework, for Node.js. Prior to version 5.7.2, a validation bypass vulnerability exists in Fastify where request body validation schemas specified by Content-Type can be completely circumvented. By appending a tab character (\\t) followed by arbitrary content to the Content-Type header, attackers can bypass body validation while the server still processes the body as the original content type. 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