CVE-2025-67489: vitejs vite-plugin-react Code Injection

Vulnerability summary

CVE-2025-67489 is a critical (CVSS 9.8) Code Injection vulnerability in vitejs vite-plugin-react. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.3% of scored vulnerabilities.

Timeline

1. 09-12-2025
   PublishedVulnerability first disclosed.
2. 10-12-2025
   Last modifiedVulnerability information updated.

Description

@vitejs/plugin-rs provides React Server Components (RSC) support for Vite. Versions 0.5.5 and below are vulnerable to arbitrary remote code execution on the development server through unsafe dynamic imports in server function APIs (loadServerAction, decodeReply, decodeAction) when integrated into RSC applications that expose server function endpoints. Attackers with network access to the development server can read/modify files, exfiltrate sensitive data (source code, environment variables, credentials), or pivot to other internal services. While this affects development servers only, the risk increases when using vite --host to expose the server on all network interfaces. This issue is fixed in version 0.5.6.

• CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.