Bug 2418149 (CVE-2025-66415)

Summary: CVE-2025-66415 fastify-reply-from: fastify-reply-from: Unauthorized route access via malicious URL
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jkoehler, lphiri, sdawley
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in fastify-reply-from. This vulnerability allows an attacker to bypass intended route restrictions and gain unauthorized access to specific application routes, potentially exposing sensitive information or functionality, via crafting a malicious Uniform Resource Locator (URL).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-12-01 23:01:16 UTC 
fastify-reply-from is a Fastify plugin to forward the current HTTP request to another server. Prior to 12.5.0, by crafting a malicious URL, an attacker could access routes that are not allowed, even though the reply.from is defined for specific routes in @fastify/reply-from. This vulnerability is fixed in 12.5.0.