CVE-2025-68155: @vitejs/plugin-rsc has Arbitrary File Read via `/__vite_rsc_findSourceMapURL` Endpoint on Development

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-16 · updated 2026-06-17
Weakness: CWE-22

Description

@vitejs/plugin-rs provides React Server Components (RSC) support for Vite. Prior to version 0.5.8, the `/__vite_rsc_findSourceMapURL` endpoint in `@vitejs/plugin-rsc` allows unauthenticated arbitrary file read during development mode. An attacker can read any file accessible to the Node.js process by sending a crafted HTTP request with a `file://` URL in the `filename` query parameter. Version 0.5.8 fixes the issue.

Affected products

vitejs vite-plugin-react: before 0.5.8

References

https://github.com/facebook/react/pull/29708
https://github.com/facebook/react/pull/30741
https://github.com/vitejs/vite-plugin-react/commit/582fba0b9a52b13fcff6beaaa3bfbd532bc5359d
https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-g239-q96q-x4qm

Get alerted when CVE-2025-68155 or the next vulnerability affects your stack