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CVE-2026-25223 Fastify is a fast and low overhead web framework, for Node.js

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. This issue has been patched in version 5.7.2.

Affected products and versions

Product Affected versions Fixed in
fastify 5.7 earliest → < 5.7.2 5.7.2
Red Hat OpenShift AI 2.16 1774282136 earliest → < 1774282136 1774282136
Red Hat OpenShift AI 2.25 1776742141 earliest → < 1776742141 1776742141
Red Hat OpenShift Dev Spaces 3.27 1774476526 earliest → < 1774476526 1774476526
Red Hat Enterprise Linux AI (RHEL AI) 3 Versions not published
Red Hat OpenShift AI (RHOAI) Versions not published

References

Timeline

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