Bug 2421590 (CVE-2025-55183)

Summary: CVE-2025-55183 next: React Server Components: Source code exposure through crafted HTTP request
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: bbrownin, caswilli, chfoley, gotiwari, jgrulich, jhorak, kaycoth, lball, mvyas, ngough, swoodman, tpopela, veshanka
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in React Server Components (RSC). This vulnerability allows an information leak, where a specifically crafted HTTP (Hypertext Transfer Protocol) request to a vulnerable Server Function can unsafely return its source code. Exploitation requires a Server Function that explicitly or implicitly exposes a stringified argument. A malicious HTTP request can be crafted and sent to any App Router endpoint that can return the compiled source code of Server Functions. This could reveal business logic, but would not expose secrets unless they were hardcoded directly into Server Function code.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-12-11 21:02:25 UTC
An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.